List of Greek words with English derivatives

This is an incomplete list of Greek words with derivatives in English. There are many English words of Greek origin, with a variety of histories: vernacular borrowing, typically passing through Latin and French; learned borrowing directly from Greek; coinage in post-classical Latin or modern European languages; and direct borrowings from Modern Greek.

The words (or suffixes) are in Greek alphabetic order, with tables for the 24 Greek letters, listing thousands of related English words.

Contents
Transliteration Greek words with modern derivatives Α Β Γ Δ Ε Ζ Η Θ Ι Κ Λ Μ Ν Ξ Ο Π Ρ Σ Τ Υ Φ Χ Ψ Ω See also External links

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Main article: English words of Greek origin

Greek words which have entered English through the vernaculars are generally spelled according to the new form they took, and there is no systematic correspondence between the Greek form and the English form: βούτυρον/butter, επίσκοπος/bishop. On the other hand, learned borrowings and modern coinages generally follow the conventional Latin transliterations: βούτυρον/butyr(ic), επίσκοπος/episcop(al).

Greek words with modern derivatives

The citation form shown is the form most commonly shown in dictionaries, but this form is often unrepresentative of the word as used to form a compound word, hence the root form is also shown. In the case of verbs, the citation form is often by convention the first person singular, present indicative, (cf Latin), for instance φάγω (phagō), "I eat", rather than the infinitive ("to eat").

The "classical" transliteration as described above is used for both the Citation form and the Root form. Greek entries are in alphabetical order according to the Greek alphabet, English entries by the Roman alphabet.

The Greek words are shown in polytonic orthography, in other words showing the breathings and the fuller range of accents.

Note that alpha privatives are addressed under the heading of the positive form of the word whenever possible.

Α

a

Citation form		Root form		Meaning	English derivative
ἀ-	a-	ἀ-/ἀν-	a-/an-	without, not	abyss, abyssocottidae, abyssopelagic, acatalectic, achromatic, acephaly, achene, aclinic, adamant, adelopod, adelospondyli, adelophagi, adelophryne, adiabatic, adiaphora, adytum, aedes, agnostic, ahistorical, Alexander, alexipharmic, alexithymia, alexiteric, amaranth, ambrosia, ambrotype, amethyst, ametropia, amianthus, amnesia, amoral, amorphous, anaemia, anaesthesia, analcime, analgesia, analphabetic, anarchy, Anarthriaceae, anarthrous, anechoic, anecdote, anergy, anhydrous, anodyne, anomalocarid, anomalopidae, anomalopus, anomaluridae, anomaly, anomic, anonymous, anorexia, anorgasmic, apathy, anopheles, anophelorastia, apatheist, apathy, aphanes, aphaniotis, aphasia, aphasiology, apodidae, Apteryx, Apterygidae, Apteropanorpidae, apus, aporia, arrhythmia, asthenia, asthenopia, asymmetric, asymptote, atheist, atonal, atrophic, atropos
ἄβαξ	abax	ἀβακ-	abac-	reckoning-board, used for counting votes	abacus, abaculus, abax
ἀββάς	abbás			(title of respect for monks and priests, from Syriac abbā)	abbot
ἄγαλμα	āgalma	ἀγαλματ-	agalmat-	glory, delight, honour, statue	agalmatolite, Agalmatophilia
ἀγαθός	agathos	ἀγαθ-	agath-	good	Agatha, agathism, agathodaemon, kalokagathia
ἀγάπη	agapē	ἀγαπ-	agap-	fraternal love	agape, agapanthus, agapanthaceae
ἀγαυός	agauos	ἀγαυ-	agau-	illustrious, noble	agave, agavaceae
ἀγγαρεία	angareiā	ἀγγαρει-	angarei-	impressment for public service	angary, angaria, angariate
ἀγγείον	angeion	ἀγγειο-	angeio-	vessel	angiosperm, angiocardiography, angiodysplasia, angiogenesis, angiogram, angiography, angioma, angiopathy, angioplasty, angiosperma, angiostatin, angiotensin,
ἄγγελος	angelos	ἀγγελ-	angel-	messenger	angel, archangel, evangelist
ἅγιος	hagios	ἁγιο-	hagio-	holy	hagiography, hagiology, hagiolotry, hagiocracy, hagiarchy
ἄγκιστρον	ankistron	ἀγκιστρ-	ankistr-	hook	ancistrocladus, ancistrocactus, ancistrocheirus
ἀγκύλος	ankulos	ἀγκυλ- ἀγκυλ-	ankyl- ankul-	crooked, curved	ancylus, angle, ankyloglossia, ancylopoda, ankylosaurid, ankylostomiasis
ἀγκύλωσις	ankulōsis	ἀγκυλ-ωσι-	ankul-οsi-	stiffening of the joints	ankylosis, ankyloglossia, ankylosaurus
ἄγκυρα	ankura	ἀγκυρ-	ankur-	anchor	anchoring, anchor, ankyrin
ἀγκών	ankōn	ἀγκων-	ankon-	elbow	ancona, ancon, anconal
ἀγορά	agorá	ἀγορ-	agor-	marketplace	agora, agoraphobia, agoranomos
ἄγρα	agra	-αγρα/ἀγρ-	-agra/agr-	seizure, trap	podagra, pellagra
ἀγρός	agrós	ἀγρο-	agro-	tilled land	agrobiology, agronomics, agrology
ἄγρωστις	agrōstis	ἀγρωστιδ-	agrostid-	a type of grass	agrostology, agrostophyllum, agrostistachys
ἄγω, ἀγωγός	agō, agōgos	ἀγ-	ag-	I drive, lead; leader	agon, anagoge, demagogue, isagoge, mystagogue, pedagogue, synagogue
ἀγών	agón	ἀγών-	agon-	contest, struggle	antagonistic, agony, protagonist
ἀδελφός	adelphos	ἀδελφ-	adelph-	brother	adelphopoiesis, adelphous, monadelphous, adelphogamy, Philadelphia
ἀδήν	adēn	ἀδενο-	adeno-	gland	adenoma, adenomelablastoma, adenomyosis, adenosine
ᾍδης	Hades	ᾉδη-/ᾉδο-	hade-/hado-	god of the underworld	hadean, Hades, hadopelagic
ἁδρός	hadros	ἁδρο-	hadro-	thick	hadron, hadrosaurus
ἀείδω	aeidō	-ᾠδ-	-od-/-ed-	to sing, praise or whistle	comedian, comedy, melody, ode, parody, palinode, prosody, psalmody, rhapsody, threnody, tragedian, tragedy
ἀέριος	aerios	ἀέρι-	aeri-	of the air, aerial	aerial
ἀήρ	aēr	ἀερο-	aero- air-	air	air; aerial, aerobic, aerobics, aerobiology, anaerobic, aerodynamics, aerofoil, aeronautics, aerobatics, airplane, aeroplane, airship
ἀθήρα	athēra	ἀθηρ-	ather-	gruel	atheroma, atherosclerosis
ἆθλος	âthlos	ἆθλ-	athl-	contest, prize, struggle	athlete, biathlon, decathlon, heptathlon, pentathlon, triathlon
αἰθάλη	aithalē	αἰθαλ-	aithal-	soot	aethalops, ethallobarbital
αἰθήρ	aithēr	αἰθερ-	aither-	massless medium	ether, ethereal
αἴγαγρος	aigagros	αἰγαγρ-	aigagr-	wild goat	aegagrus, aegagropila
αἰγιαλός	aigialos	αἰγιαλ-	aigial-	beach, seashore	aegialornis, aigialosaur, aegialornithidae
αἰγίς	aigis	αἰγιδ-	aigid-	armour of Zeus	aegis
αἰκία	aikia	αἰκι-	aiki-	torture, suffering	aecium, aeciospore
αἴλουρος	ailouros	αἰλουρo-	ailouro-	feline	ailuromancy, ailurophobia, aelurodon, aeluroscalabotinae
αἳμα	haima	αἱμο/-αἱματ-	haimo-/haimat-	blood	anemia, anemic, hemoglobin, hemophilia, hemophobia, hemorrhage, hemorrhoid
αἴνιγμα	ainigma	αἰνιγματ-	ainigmat-	riddle	enigma
Aἴολος	Aiolus	Aἴολ-	Aiol-	Keeper of the Winds Gk. Myth	Aeolic, Aeolian, Aeolotropy
αἰπεινός	aipeinos	αἰπειν-	aipein-	high, lofty	aepisaurus,
αἰπύς or αἰπός	aipus or aipos	αἰπυ-	aipu-	high and steep, utter	aepycamelus, aepyornis, aepyornithidae, aepyceros
αἰσθητικός	aisthētikos	αἰσθητ-ικ-	aisthēt-ik-	of sense-perception, sensitive, perceptive	aesthetic, aesthetician, aestheticism, aesthete, aesthetics, anesthesia
αἰσχύνω	aiskhunō	αἰσχύν-	aiskhun-	I dishonour, shame	aeschynanthus, aeschynite
αἰτία	aitia	αἰτι-	aiti-	cause	etiology
αἰχμή	aikhmē	αἰχμ-	aichm-	point of a spear	aechmophorus, aechmea
αἰών	aiōn	αἰων-	eon-	age	eon
αἰώνιος	aiōnios	αἰώνι-	aionι-	lasting for an age	aeonium, aeonian
Ἀκαδημία	Akadēmia	Ἀκαδημ-	akadēm-	the field of Academos	academe, academic, academy
ἀκακία	akakia	ἀκακι-	akaki-	harmlessness	acacia
ἀκαλύφη	akaluphē	ἀκαλυφ-	acalyph-	stinging-nettle	acalypha, acalyphoideae
ἄκανθος	akanthos	ἀκανθ-	acanth-	thorn plant	acanthus, acantharea, acanthite, acanthocephala, acanthocercus, acanthodactylus, acanthosaura
ἀκάρι	akari	ἀκαρ-	acar-	a kind of mite	acarid, acariasis, acarology
ἀκόλουθος	akoluthos	ἀκόλουθ-	akolouth-	follower	anacoluthon, acolyte
ἀκόνη	akonē	ἀκον-	akon-	whetstone	aconitum, paragon
ἀκούω	akouō	ἀκου-στ-	acou-st-	I hear	acoustic, acoustics
ἄκρος	akros	ἀκρο-	acro-	highest, topmost, end, outermost, sharp point	acme, acne, acrobat, acrocephalus, acrochordidae, acrochordon, acromantula, acronym, acrotomophilia, acrophobia, acropolis, Akron, acrostic
ἀκροστιχίς	akrostikhis			headline, end-line	acrostic
ἀκτίς	aktis	ἀκτινo-	aktino-	ray	actinium, actinobacteria, actinodine, actinolite, actinometer, actinomorphic, actinomycetes, actinophryid, actinophryids, actinopteri, actinopterygii, actinozoa
ἀλάβαστρος	alabastros	ἀλαβαστρ-	alabastr-	a variety of mineral	alabaster
ἀλέκτωρ	alektór	ἀλέκτ-	alect-	rooster, a cock	alectorius, alectryomancy
ἀλλαντοειδής	allantoeidēs	ἀλλαντο-ειδ-	allanto-eid-	sausage-shaped	allantois, allantoin
ἀλήθεια	alētheia	ἀληθει-	alethei-	truth	alethiology, dialetheism
ἀλέω	aleo	ἀλε-	ale-	to grind (flour), bruise, pound	aleurone, aleuromancy
ἄλγος	algos	ἀλγ-	alg-	pain	-algia, arthralgia, cardialgia, cephalalgia, fibromyalgia, myalgia, neuralgia, nostalgia, odontalgia, otalgia, analgesic
ἀλείφω	aleiphō	ἀλειφ-	aleiph-	I anoint with oil	aliphatic compound
ἄλκιμος	alkimos	ἀλκ-ιμ-	alc-	strong	analcime, analcite
ἁλκυών	halkuōn	ἁλκυον-	halkuon-	kingfisher	Alcyonaria, halcyon, Halcyon, halcyonidae
ἀλληγορῶ	allēgorō	ἀλληγορ-	allēgor-	I interpret allegorically	allegory
ἄλληλον	allēlon	ἀλληλο-	allēlo-	of one another	allelomorph, parallelogram
ἄλλος	allos	ἀλλο-	allo- all-	other, different, strange	allegory, allergy, allele, allochthon, allodium, allodontidae, allogenes, allograft, allography, allolactose, allometry, allomorph, allopath, allopatry, allophony, allopoiesis, allopurinol, allosaurus, allotroph, allotropic, allotropy allergy, parallel, parallax, synallagmatic
ἅλς	hals	ἁλ-	hal-	salt sea	halogen, haloaromatic, halobacteria, halosaur
ἀλλότροπος	allotropos	ἀλλoτροπ-	allotrop-	strange	allotropy, allotropes, allotropism,
ἄλυσσος	alussos	ἀλυσσ-	alyss-	a plant believed to cure rabies	alyssum, Alyssa
ἄλφα	alpha	ἄλφα-	alpha-	first letter of Greek alphabet, alpha	alphabet, alphabetize, alphagram, alphandia, alphanumeric, alpha particle, analphabetic
ἀλώπηξ	alōpēx	ἀλωπεκ-	alopek-	fox	alopecia
ἅλως	halōs	ἁλω-	halo-	round shape, the disk of the sun, circular arcade at Delphi	halo
Ἀμαζών	Amazōn	Ἀμαζον-	Amazon-	female warriors Greek Myth.	Amazon, Amazonia, Amazonite, Amazonomachy
Ἀμάλθεια	Amaltheia	Ἀμαλθει-	Amalthei-	the foster-mother of Zeus (a goat or a nymph)	Amalthea
Ἀμανῖται	amanitai	ἀμανιτ-	amanit-	a kind of fungus	amanita, amanitaceae
Ἀμαρυλλίς	amarullis	ἀμαρυλλ-	amarull-	name of a shepherdess Gk. Myth.	amaryllis, amaryllidaceae
ἀμαύρωσις	amaurōsis	ἀμαυρ-ωσι-	amaur-osi-	blacken	amaurosis, amaurobiidae
ἀμβλύς	amblus	ἀμβλυ-	ambly-	dim	amblygonite, amblyopia, amblypoda
ἄμβυξ	ambux	ἀμβυκ-	ambyk-	cup	alembic, alembication, alembicated
ἄμβων	ambōn	ἀμβων-	ambon-	raised edge	ambo
ἄμμος	ammos	ἀμμο-	ammo-	sand	ammoperdix, ammophila, ammotrechidae
ἀμμωνιακός	ammōniakos	ἀμμωνι-	ammōni-	from Ammōn	ammonia, ammoniacal
ἀμμωνίς	ammōnis	ἀμμων-	ammon-	horn of Ammōn	ammonite, ammonoid, ammonoidea
ἀμνός	amnos	ἀμν-	amn-	lamb	amnion, amniotic, amniocentesis, amnioscope
ἀμοιβή	amoibē	ἀμοιβ-	amoeb-	change	amoeba, amoebiasis, amoebic, amoeboid, Amoebozoa, dientamoebiasis, entamoeba
ἄμυλον	amulon	ἄμυλ-	amyl-	starch	amyl, amylase, amylin, amyloid, amyloidosis, amylolysis, amylopectin, amylophagia, amyloplast, amylose, amyls, amylum
ἀμυγδαλή	amugdalē	ἀμυγδ-	amygd-	almond tree	almond, amygdala, amygdalin, amygdaloid, amygdule
ἀμφί	amphi	ἀμφι-	amphi-	on both sides	amphibian, amphibole, amphibrach, amphipoda, amphioxus, amphiglossus, amphitheater, Amphictyony, amphimacer, amphora, ampulla, amphoteric
ἀνά	ana	ἀνα	ana	again, backward, upward	anabaptist, anabasis, anabatic, anabantidae, anabiosis, anabolic, anabolism, anachronism, anaclitic, anacoluthon, anacrusis, anadem, anadiplosis, anadromous, anaglyph, anagoge, anagram, analects, analemma, analeptic, analogue, analogy, analysis, analytic, anamnesis, anamorphosis, anapest, anaphora, anaphylaxis, anaplasia, anaplastic, anaplerotic, anapnoic, anaptyxis, anastomosis, anastrophe, anatase, anathema, Anatolia, anatropia, anchorite
ἀναπνοή	anapnoē	ἀναπνο-	anapno-	respiration, breathing	anapnoic, anapnograph
ἄνεμος	anemos	ἀνεμο-	anemo-	wind	anemometer, anemoscopy, anemoscope, anemophilous
ἀνεμώνη	anemōnē	ἀνεμων-	anemon-	lit. daughter of the wind	anemone, sea-anemone
ἀνεύρυσμα	aneurusma	ἀνευρυσμ-	aneurusm-	dilation	aneurysm, microaneurysm
ἀνήρ	anēr	ἀνδρο-	andrο-	man (male human)	androcentrism, androgen, android, andrologist, andrology, androstephium, androsterone, misandry, monandry, polyandry
ἀνθολόγιον	anthologion	ἀνθολoγι-	anthologi-	collection of extracts	anthology, anthologist
ἄνθος	anthos	ἀνθο-	antho-	flower	anthology, anthophyta, anthostema, anthogonium, Anthozoa, anthocleista, anthotype, anthocyanin, anthocerotophyta
ἀνθρακίτις	anthrakitis	ἀνθρακιτ-	anthracit-	kind of coal	anthracite, anthracite iron
ἄνθραξ	anthrax	ἀνθρ-	anthr-	coal	anthrax, anthracotherium, anthracosauria, anthracosis
ἄνθρωπος	anthrōpos	ἀνθρωπο-	anthrōpo-	human being	anthropology, anthropomorphism, anthropopathy, anthropometrics, anthropomancy, anthropopath, anthropoglot, anthroponyms, anthroposophical, anthroponym, anthropomorphists, anthropocentrism, anthropomorphics, anthropoidea, anthropomorphous, anthroposemiotics, misanthrope, misanthropy, philanthropy, zoanthropy
ἀνιέναι	anienai	ἀνι-	ani-	to go up	anion, anionic
ἄνισος	anisos	ἀνισο-	aniso-	unequal, dissimilar, uneven	anisogamous, anisometric, anisometropia, anisotropic
ἄννησον	annēson	ἄννησ-	annes-	dill	anise, aniseed, anisette
ἄνοδος	anodos	ἀνοδ-	anod-	way up	anode, anodising
ἄνορθος	anorthos	ἀνορθο-	anortho-	sloping	anorthosite, anorthoclase, anorthite
ἀντί	anti	ἀντ-	ant-	opposite, counter	antacid, Antaeus, antagonist, antalgic, antarchy, antarctic, antares, anthem, antibiotic, antibody, antichrist, anticlimax, anticoagulant, anticyclone, antidepressant, antidiabetic, antidote, antifebrile, antigen, Antigone, antihero, antihistamine, antimatter, antinode, antinomy, antinomian, antioxidant, antipathy, antiperspirant, antiphon, antiphrasis, antipodes, antipope, antipyretic, antiscorbutic, antiseptic, antistatic, antistrophe, antitheism, antithesis, antitoxic, antivirus, antonym, antitrust, antitype, antonomasia
ἀνταρκτικός	antarktikos	ἀνταρκτικ-	antarktik-	Antarctic, opposite to the Arctic	Antarctic, Antarctica
ἀντίφωνα	antiphōna			sounding in answer, concordant	anthem, antiphon
ἄντρον	antron	ἀντρ-	antr-	cave, cavity	antrum
ἄνυδρος	anhudros	ἀνυδρ-	anhydr-	waterless, arid	anhydrite, anhydrous, anhydrobiosis
ἄξιος	axios	ἀξιο-	axio-	worthy	axiological, axiology, axiology, axiom, axiomatic, axiomatisation
ἄξων	axōn	ἀξον-	axon- axi-	axis	axoneme, axoplasm, axisymmetric
ἀόριστος	aoristos	ἀοριστ-	aorist-	indefinite	aorist
ἀορτή	aortē	ἀορτ-	aort-	the great artery	aortic, aorta
ἃπαξ	hapax	ἁπαξ-	apax	once	hapax legomenon, hapaxes
ἀπάτη	apatē	ἀπατ-	apat-	deceit	apatite, apatosaurus
ἁπλούς	haplous	ἁπλο-	haplo-	single	haplodiploid, haploid, haploidisation, haplorrhini, haplotype
ἀπό	apo	ἀπο-	apo-	away from	anapodeictic, apheresis, apobiosis, apocalypse, apocarteresis, apocatastisis, apochromatic, apocleisis, apocope, apocrine, apocrustic, apocrypha, apocyneous, apodeme, apodemialgia, apodictic, apodosis, apodyterium, apoenzyme, apoferritin, apogamy, apogee, apogeotropic, apograph, apohyal, apoinducer, apologue, apologetics, apology, apomixis, apomorphine, aponeurectomy, aponeurosis, apopathetic, apopemptic, apophasis, apophlegmatic, apoplexy, apoprotein, aposiopesis, apostasy, apostilb, apostle, apostrophe, apothanasia, apothecary, apothegm, apothem, apotheosis, apotropaic, apoxesis, apozem, hemapheresis
ἀποθήκη	apothēkē	ἀποθήκ-	apothek-	any place to store a thing, storehouse	apothecary, boutique
ἀπόστολος	apóstolos			messenger	apostle
ἀράχνη	arakhnē	ἀραχν-	arachn-	spider	arachnid, arachnologist, arachnophobia
ἄργιλλος	argillos	ἀργιλλ-	argill-	clay	argillite, argillaceous
Ἄρης	Arēs	ἀρεο-	areo-	planet Mars	areocentric, areology, areography
ἀρθρίτις	arthritis	ἀρθριτιδ-	arthritid-	inflammation of joint	arthritis, osteoarthritis
ἄρθρον	arthron	ἀρθρο-	arthrο-	joint	arthropod, arthroscopy, arthropathy
ἄρθρωσις	arthrōsis	ἀρθρωσι-	arthrosi-	articulation	dysarthria, diarthrosis, anarthrous
ἀριθμός	arithmos	ἀριθμ-	arithm-	number	arithmetic, arithmocracy, logarithm
ἄριστος	aristos	ἀριστο-	aristo-	best	aristocracy
Ἀρκαδία	Arcadia	ἀρκαδι-	arcadi-	area in Peloponnese, Greece, emblematic of rural peace	Acadian
ἄρκτος	arktos	ἀρκτ-	arct-	bear, the northern constellation Ursa Major	arctic
ἀρκτούρος	arktouros	ἀρκτουρ-	arctur-	bearward	arcturus, arcturis, arcturian
ἁρμονία	harmonia	ἁρμονι-	harmoni-	agreement, harmony	harmony, harmonium, harmonica, harmonisation, harmonics, enharmonic
ἁρμός	harmos	ἀρμ-	arm-	joint, shoulder	harmotome
ἀρτηρία	artēria	ἀρτηρ-	arter-	windpipe, artery	artery, arterial, arteritis
ἄρτιος	artios	ἀρτιο-	artio-	even	artiodactyl
ἄρχω	archó	ἀρχ-	arch-	begin, first, reign, rule	anarchy, antarchy, anthroparchy, archaeology, archbishop, archaic, archdeacon, archdiocese, archidiptera, archduchess, archduke, archenemy, archetype, archigram, archipelago, archrival, architect, architecture, architeuthidae, archon, archosaur, archostemata, aristarchy, autarchy, hagiarchy, heresiarch, hierarchy, matriarch, monarchy, oligarchy, patriarch, plutarchy, squirearchy, synarchy
ἄρωμα	arōma	ἀρωματ-	aromat-	spice	aroma, aromatic compounds
-ας	-as	-αδ-	suffix(-ad)-	suffix	Olympiad, Naiad
ἄσθμα	asthma	ἀσθματ-	asthmat-	asthma	asthmatic
Ἀσία	Asia	Ἀσια-	asia-	Mythological daughter of Iapetos	Asia, Asian, Asianisation, asiaphile
ἄσις	asis	ἀσ-	as-	slime, mud	perioxidase, telomerase
ἀσπάραγος	asparagos	ἀσπαραγ-	asparag-	asparagus	asparagus, asparagine acid, aspartame, aspartate
ἀστήρ	astēr	ἀστ(ε)ρ-	ast(e)r-	star	asteroid, asterisk
ἀστράγαλος	astragalos	ἀστράγαλ-	astragal-	vertebra, knucklebone	astragalus
ἄστρον	astron	ἀστρο-	astro-	constellation	astronomy, astrology, astrophysics, astrodynamics, astronaut, astrolabe
ἄσυλον	asulon	ἀσυλ-	asyl-	sanctuary	asylum
ἀσφυξία	asphuxia	ἀσφυξι-	asphyxi-	stopping of the pulse	asphyxia
ἀταξία	ataxia	ἀταξ-	atax-	disorder	ataxia, ataxy
ἀτμός	atmos	ἀτμο-	atmo-	vapor	atmosphere, atmospheric
Ἄτλας	Atlas	ἀτλαντ-	atlant-	name of a Titan	atlas, Atlantic
Ἀττική	Attikē	Ἀττικ-	Attik-	A region of east-central Greece	attic, atticism
αὐθεντικός	authentikos	αὐθεντικ-	authentik-	original	authentication, authenticity
αὐστηρός	austēros	αὐστηρ-	auster-	harsh, bitter	austerity
αὐταρχία	autarkhia	αὐταρχι-	autarchi-	absolute governing	autarchy, autarchism
αὐτάρκεια	autarkeia	αὐτάρκ-	autark-	self-sufficiency	autarky
αὐτόχθων	autokhthōn	αὐτόχθον-	autochthon-	of the land itself	autochthon, autochthon, autochthonous
αὐξάνειν	auxanein	αὐξ-	aux-	to increase	auxin, auxesis
αὐτός	autos	αὐτο-	aut-	self (reflexive pronoun)	authentic, autism, autobiography, autochthon, autocracy, autodidactic, autograph, autolatry, automobile, autonomy, automatic, autophobia, autopsy, autotheism
ἀφιέναι	aphienai	ἀφε-	aphe-	to let go	aphesis, aphetic, aphetism
Ἀφροδίτη	Aphroditē	ἀφροδιτ-	aphrodit-	risen from sea-foam, name of a goddess	aphrodisiac, aphrodisia,
ἀχάτης	achatēs	ἀχάτ-	akhat-	agate	agate, agateware
ἀψίνθιον	apsinthion	ἀψινθι-	apsinthi-	alcoholic liqueur	absinthe
ἁψίς	hapsis	ἁψιδ-	apsid-	arch	apse, apsis, apsidal, Diapsida

Β

b

Citation form		Root form		Meaning	English Derivative
βαθύς	bathus	βαθ-	bath-, byss-	deep	abyss, abyssocottidae, abyssopelagic, bathos, bathybius, bathymetry, bathyscaphe, bathysphere
βαίνω	baino	βασ-, βατ-	bas-, bat-	to walk or step	acrobat, adiabatic, anabasis, anabatic, basis, diabetes, ecbatic, hyperbaton, katabasis, katabatic
βακτηρία	bactērion	βακτηρι-	bacteri-	stick, staff	bacteremia, bacteria, bactericide. bacteriocin, bacteriophage, bacteriorhodopsin, bacteriostasis, bacteriuria
βάλλω	ballō	βαλ-	bal-	to throw, hit or strike	anabolic, astrobleme, balista, ballistics, ballistite, ballistocardiography, ballistospore, belomancy, catabolism, diabolic, discobolus, emblem, hyperbole, metabolism, parable, problem, symbol, symbolic, symbolism
βάλσαμον	bálsamon			a balsam tree	balm, balsam, balsamic
βαπτίζω	baptizō	βαπτ-ισ-	bapt-is-	dip, immerse, cleanse	anabaptist, baptise, baptism, baptist, baptistery, pedobaptism
βάρβαρος	barbaros	βαρβαρο-	barbaro-	stranger, a non-Greek	barbarian, barbarism,
βάρος	baros	βαρο-	baro-	weight	barology, barometer, isobar, millibar
βαρύς	barus	βαρυ-	baru-	heavy	baryon, baritone
βασιλεύς	basileus	βασιλ-	basil-	king	basil, basilica, basilicon, basilisk
βάτραχος	batrakhos	βατραχ-	batrakh-	frog	Batrachia, batrachite, Batrachophagous, Batrachochytrium, Ophidobatrachia
βδέλλα	bdella	βδελλ-	bdell-	leech	bdelloidea
βήτα	beta	βήτα-	beta-	second letter of Greek alphabet, beta	alphabet, beta, betamax
βιβλίον	biblion	βιβλιο-	biblio-	book	bible, bibliography, bibliolatry, bibliomancy, bibliomania, bibliophile, bibliotherapy
βίος	bios	βιο-	bio-	life	antibiotic, autobiography, biography, biology, biopsy, bios
βλαστός	blastos	βλαστο-	blasto-	sprout, germ	blastoderm, blastoid, blastoma, blastula
βλάσφημος	blasphēmos	βλασφημ-	blasphem-	To speak of God in an irreverent manner	blaspheme
βουλή	boulē	βουλ-	boul-	will	abulia, boule, hyperboulia
βούτυρον	boútȳron			butter	butter, butyric, butyl
βορέας	boreas	βορε-	bore-	north, the north wind	Aurora Borealis, hyperborean
βόσκω	bosko	βοs-	bot-	to feed, to tend	botanist, botomancy
βοῦς	bous	βου-	bou-	ox	boustrophedon, bulimia, bugloss (βούγλωσσος)
βραχύς	brakhus	βραχυ-	brakhu-	short	brachycephalic
βραδύς	bradus	βραδύ-	bradu-	slow	bradycardia, bradykinin, bradyphrasia, bracyseism
βρῶμος	brōmos	βρωμ-	brom-	stink	bromate, bromide, bromidrosis, bromine, bromocriptine, bromargyrite
βρόγχος	bronkhos	βρογχ-	bronkh-	windpipe	bronchiole, bronchitis, bronchocele, bronchophony, bronchoscopy, bronchotomy, bronchus
βροντή	brontē	βροντ(ο)-	bront(o)-	thunder	brontology, brontosaurus, brontotheriidae
βρύο	bryo	βρύο-	bryo-	to bloom, to teem, moss (in noun form)	bryochore, bryology, Bryony, bryophile, bryophyte, embryectomy, embryo, embryogenesis, embryology
βυθός	buthos	βυθ-	byth-	the depth	bythometer, bythometric, bythometrical

Γ

g

Citation form		Root form		Meaning	English Derivative
γάδος	gados	γαδ-	gad-	cod	Gadidae
γαῖα, γῆ	gaia, gē	γη/γεω-	ge-/geo-	earth	apogee, geology, Gaia, geochronology, geometry, geography, perigee, geothermy, georeference, geophysics, geomagnetism, geoscience
γάλα	gala	γαλακτ(ο)-	galact(o)-	milk	galactose, galactosemia, galactosamine, galax, galaxy
γαλέα	galea	γαλε-	gale-	galley	galley
γάλιον	galion	γάλιον-	galion	bedstraw	galium
γάμμα	gamma	γαμμα	gamma	gamma	gammadion, gamut
γάμος	gamos	γαμ-	gam-	marriage	agamia, agamidae, bigamy, hierogamy, gamete, monogamy, polygamy
γάγγλιον	ganglion	γαγγλι-	gangli-	subcutaneous tumour	ganglion, ganglionectomy
γάγγραινα	gangraina	γάγγραινα	gangraina	gangrene	gangrene
γάνος	ganos	γανο-	gano-	bright	ganodonta
γαστήρ	gastēr	γαστ(ε)ρ(ο)-	gast(e)r(o)-	stomach	gasteromycete, gastrectomy, gastritis, gastroenterology, gastrolith, gastromancy, gastronomy, gastropoda
γῆρας	gēras	γηρατ-	gerat-	old age	geriatric
γέρανος	geranos	γεραν-	geran-	crane	geranium
γέρων	gerōn	γεροντ-	geront-	old man	gerontocracy, gerontology, gerousia
γεύειν	geuein	γευ-	geu-	to taste	ageusia, ageustia, hypergeusia, parageusia
γιγνῶσκω	gignōskein	γνω-	gnō- gnē-	to know	anagnorisis, agnostic, agnostida, diagnostic, gnomic, gnomon, gnosis, gnostic
γίγας	gigas	γιγαντ-	gigant-	huge, enormous	giant, gigabyte, gigantic
γίγνομαι	gignomai	γεν-, γoν-	gen-, gon-	to come into being or be born	angiogenesis, anthropogeny, Antigone, biogenesis, epigone, ethnogenesis, eugenics, genetic, genesis, gene, genocide, genus, gonad, heterogeneous, homogeneous, monogeny, morphogenesis, ontogeny, oogenesis, oogonia, orogeny, parthenogenesis, phylogenesis, polygenesis, psychogenesis, spermatogenesis
γλαυκός	glaukos	γλαυκ-	glauk-	blue-green, gray	glaucoma, glauconite
γλοιός	gloios	γλοι(ο)-	gloi(o)-	gluey	glioblastoma, glioma, gliosarcoma, gliosis, gliotoxin, gloeocapsa
γλωσσίς γλωττίς	glōssis glōttis	γλωσσιδ- γλωττιδ-	gloss- glott-	tongue	anthropoglot, diglossia, epiglottis, epiglottitis, gloss, glossary, glossodynia, glossematics, glossolalia, glossopteris, glottis, glottochronology, idioglossia, isogloss, monoglottism, polyglot, proglottid, xenoglossy
γλουτός	gloutos	γλουτ-	glout-	buttock	gluteus
γλυφή	gluphē	γραφ-	glyph-	carving, carved work	glyph, glyptodon, hieroglyphic, petroglyph
γλυκύς	glukus	γραφ-	glyk-	sweet	glucosamine, glucose, glycemia, glyceria, glyceride, glycerol, glycine, glycolysis
γλῶσσα	glōssa	γλωσσ-, γλωτ-	gloss-, glot-	tongue, language	epiglottis, glossary, glossolalia, polyglot
γλωχίς	glōkhis	γλωχιν-	glokhin-	arrow-head	glochidium
γνάθος	gnathos	γναθ(ο)-	gnath(o)-	jaw	gnathitis, gnathopod, gnathostomata
γοητεία	goēteia	γοητεία	goeteia	witchcraft	goety
γόμφος	gomphos	γόμφ-	gomph	bolt	gomphosis
γόνυ, γωνία	gonu, gōnia	γόν-, γωνι-	gon-, goni-	knee, angle	decagon, diagonal, dodecagon, enneagon, goniolatry, goniometer, gonioscopy, goniotomy, hecatogon, hendecagon, heptagon, hexagon, icosagon, octagon, orthogon, orthogonal, pentagon, polygon, tetragon, trigonometry
γράμμα	gramma	γραμμ-	gram(m)-	letter	grammar, autogram, grammatic, agrammatism
γράφω	graphō	γραφ-	graph-	I write	autograph, graph, biography, graphics, geography, xerography, stratigraphy, epigraphy, graphology, pornography, pyropgraphy
γρύψ	grups	γρυπ-	gryp-	griffin	griffin
γυνή	gunē	γυναικ-	gunaik-	woman	gynaeceum, gynaecocracy, gynecology, gynocentrism, misogynist, polygyny
γύρος	gyros	γυρο-	gyro-	round, ring, circle	gyration, gyromancy, gyroscope, gyrostat

Δ

d

Citation form		Root form		Meaning	English derivative
δαίμων	daimōn	δαιμον-	daimon-	a divine being (in Classical Greek), an evil spirit (in New Testament Greek)	daimon, demon, demonology
δάκρυον	dakruon	δακρυο-	dakruo-	tear	dacryocystitis, dacryon
δάκτυλος	daktulos	δακτυλ-	daktul-	finger	dactyl, dactyliomancy, dactylosaurus, dactylitis, pterodactyl
δάμαζω	damazo	δαμα-	dama-	to tame, to break (in) or conquer	adamant, damalis, diamond
δασύς	dasus	δασυ-	dasu-	thick, dense	dasylirion, dasymeter, dasypeltis
δέκα	deka	δεκα-	deka-	ten	decade, decagon, decalogue, decameron, decamethonium, decasyllable, decathlon
δέλτα	delta	δελτ-	delt-	the letter delta, triangular	delta, deltoid
δελτίον	deltion	δελτιο-	deltio-	small writing tablet	deltiology
δελφίς	delphis	δελφιν-	dolphin-	dolphin	dolphin, dolphinarium
δέμνιον	demnion	δεμν-	demn-	bed	didemnum
δένδρον	dendron	δενδρ(ο)-	dendr(o)-	tree	dendrite, dendrochronology, dendroclimatology, dendrogram, dendrology, liriodendron, Philodendron, rhododendron, Toxicodendron
δέρμα	derma	δερμ[α]-	derm(a)-	skin	dermatoglyphics, dermatology, dermatome, dermatomyositis, dermatophyte, dermis, epidermis
δεύτερος	deuteros	δευτερο-	deutero-	second	deuteragonist, deuterium, Deuteronomy
δέω	deó	δη-	de-	bind, tie, fasten	asyndeton, diadem, syndetic
δῆλος	delos	δηlo-	delo-	clear, evident, manifest	adelopod, adelospondylus, adelophagi, adelophryne, psychedelic
δῆμος	dēmos	δημο-	demo-	people, power	demagogy, deme, demiurge, democracy, demographic, demography, demotic, Dimotiki, endemism, epidemic, pandemic
διά	dia	δια	dia	through	adiabatic, archdeacon, deacon, diabetes, diabolic, diachronic, diacritic, diadem, diagnosis, diagonal, diagram, dialectic, dialogue, dialysis, diaper, diaphanous, diaphragm, diarrhea, diaspora, diastase, diastole, diatessaron, diatom, diameter, diamond, dianetics, diatonic, diatribe
δίαιτα	diaita			way of life, regimen	diet
διάβολος	diabolos			slanderer, accuser, devil	devil, diabolic, diablotin
διάκονος	diakonos	διάκονος	dia	temple official, deacon	deacon, archdeacon
διάλογος	dialogos			discussion	dialogue
διδάσκω	didaskō	διδασκ-	didask-	I teach	didactic, Didache
δίδυμος	didumos	διδυμ-	didum-	double, twofold, twin	didymium, epididymis
δίηγησις	diēgēsis	διηγησι-	diegesi-	narration, narrative	diegesis
διοίκησις	dioikēsis	διοικησι-	dioikesi	housekeeping, management	diocese
δίοπτρον	dioptron			a means of seeing through, various optical instruments	dioptre
δίς, δύο	dis-, duo-	δίς-, δί-, διχο-, δυo-	dis-, di-, duo-	twice, two	diatomic, dichogamy, dichotomy, dicotyledon, dioxide, diphthong, dipolar, dissect, disulfide, disyllable, duo, duopoly
διφθέρα	diphthera	διφθερ-	diphther-	skin, hide, piece of leather	diphtheria
δοκέω	dokeó	δοκ-, δόξ-	doc-, dox-	believe, have an opinion, imagine, understand	chionodoxa, docetism, doxology, doxography, heterodoxy, orthodoxy, paradox, paradoxology, paradoxurus, synecdoche
δράκων	drákōn			snake, dragon	dragon, draconian (cf. Draco), dragoon
δράσις	drasis	δρασι-	drasi-	action	drastic
δρόμος	dromos	δρομ-	drom-	racing, running, racecourse, course	aerodrome, anadromous, dromaeosauridae, dromedary, dromograph, dromomania, dromometer, dromos, dromotropic, hippodrome, hydrodrome, motordrome, palindrome, prodrome, syndrome
δύναμις	dunamis	δυν-	dun-	power, strength, force	adynamia, adynamic, aerodynamics, aerodyne, amplidyne, autodyne, dynameter, dynamicism, dynamics, dynamism, dynamite, dynamo, dynamometer, dynamotor, dynasty, dynatron, dyne, electrodynamics, heterodyne, hydrodynamics, isodynamic, magnetohydrodynamics, metadyne, neutrodyne, psychodynamics, superheterodyne, thermodynamics
δυσ-	dys-	δυσ-	dys-	English prefix either un- or mis-	dysentery, dysfunction, dyslexia, dyspepsia, dysphemism, dysphoria, dysplasia, dysprosium, dystopia, dystrophy

Ε

(h)e

Citation form		Root form		Meaning	English derivatives
ἑβδομάς	hebdomas	ἑβδομαδ-	hebdomad-	week	hebdomad
ἐγκύκλιος παιδεία      -  enkuklios paideia		ἐγκυκλοπαιδει-         -   enkuklopaidei-		encyclopedia, lit. circular, general education	encyclopedia, encyclopedic
ἑγώ	egō	ἐγω-	ego-	I, me, my	ego, egocentrism
εἰκών	eikōn	εἰκoν-	eikon-	icon, picture, painting, reality, kind	icon, iconicity, iconoclast
εἰδῶ	eidó	εἰδ-	eid-, oid-	see, behold, perceive	adenoid, alkaloid, amyloid, android, aneuploidy, anthropoid, arachnoid, asteroid, carotenoid, celluloid, choroid, colloid, corticosteroid, crinoid, cuboid, deltoid, diploid, droid, eidetic, eidolon, ellipsoid, factoid, fibroid, hemorrhoid, hominoid, humanoid, hyoid, hyperthyroid, hypothyroid, kaleidoscope, keloid, mastoid, meteoroid, mongoloid, negroid, opioid, ovoid, paranoid, polyploidy, rheumatoid, rhizoid, rhomboid, sarcoid, scaphoid, schizoid, sigmoid, sinusoid, solenoid, sphenoid, steroid, tabloid, thyroid, trapezoid, typhoid, xiphoid
εἰρήνη	eirēnē	εἰρην-	eiren-	peace, harmony	irene
ἔκλειψις	ekleipsis	ἑκλειψι-	ekleipsi-	eclipse	eclipse, eclipsis, ecliptic
ἔλαιον	elaion	ἐλαι-	elai-	oil	olive, el(a)eo-, oil, oleo-, vaseline
ἐλαστικός	elastikos	ἐλαστικ-	elastik-	elastic	elastic, elasticity
ἐλεημοσύνη	eleēmosýnē			pity, mercy	alms, eleemosynary
ἕλιξ	helix	ἑλικ-	helik-	helix	helix, helicopter, helicity
ἑλλέβορος	helléboros			hellebore	hellebore
ἔλλειψις	elleipsis	ἐλλειψι-	elleipsi-	ellipse	ellipse, ellipsis, ellipsoid, ellipticity
ἔμφασις	emphasis	έμφασι-	emphasi-	emphasis	emphasis, emphasize, emphatic
ἔμϕυτος	émphytos			implanted, engrafted	imp
ἐνέργεια	energeia	ενέργει-	energei-	energy	energetic, energize, energy
ἐγκαυστικός	enkaustikós			burning in, encaustic	encaustic
ἐπί	epi	επ-	ep-	upon, above	anepigraphic, eparch, epiglottis, epigone, epigraph, episcopacy, epistemology, epistle, epoch, epode, eponym, epoxy
ἐπίσκοπος	epískopos			overseer, bishop	bishop, archbishop
επιστολή	epistolē			message, letter	epistle
ἔργον	ergon	ἐργ-	erg-	action, deed, practice, work	erg, ergative, ergonomics, parergon, zymurgy
Ἑρμῆς	Hermēs	Ἑρμ-	herm-	messenger of the gods	Hermeticism, Hermetic, hermeneutics,
ἑρπετόν	herpeton	ἑρπετό-	herpeto-	creeping animal	herpetology
ἐρυθρός	eruthros	ἐρυθρ-	erythr-	red	erysipelas, erysipeloid, Erythrina, erythrism, erythrite, erythritol, erythroblast, erythroblastosis, erythrocyte, erythrocytosis, erythrolitmin, erythromycin, erythronium, erythropoiesis, erythropoietin, erythrose
ἑπτά	hepta	ἑπτα-	hepta-	seven	heptagon, heptameter, heptarchy, heptathlon
ἕτερος	heteros	ἑτερο-	hetero-	different	heterogeneous, heterogram, heterosexual, heterozygous
ἔτυμος	etumos	ἔτυμ-	etym-	true	etymology
εὖ	eu	εὐ-	eu-	well, good	eucharist, eugenics, eukaryote, eulogy, eunomia, euphemism, euphoria, evangelism
εὐρύς	eurus	ευρυ-	eury-	wide	eurypterid

Ζ

z

Citation form		Root form		Meaning	English Derivative
ζήλος	zēlos	ζηλ-	zel-	zeal, jealousy	jealous, overzealous, zeal, zealot, zelotypia
ζημία	zémia	ζημ-	zem-	damage, loss	zemiology
ζητῶ	zētō	ζητε-	zete-	search, inquire	zetetic
ζέφυρος	zephuros	ζεφυρ-	zephyr-	west wind	zephyr
ζίζυφον	zizuphon	ζίζυφον	zizuphon	jujube	ziziphus
ζόφος	zophos	ζόφ-	zoph-	darkness, gloom	zophos, zophotermes
ζώννυμι	zonnymi	ζω-	zō-	to gird, gird on, put on one's girdle	zone, zoster
ζῷον	zōon	ζῳο-	zōo-	animal	azoospermia, bryozoa, cryptozoa, cryptozoology, Mesozoa, metazoon, placozoa, protozoa, protozoology, spermatozoon, zoantharia, zoanthropy, zoochlorella, zodiac, zoea, zoetrope, zoo, zoogeography, zoography, zoolatry, zoology, zoomorphism, zoophilia, zoophyte, zooplasty, zoopraxiscope, zoospore, zootomy, zooxanthella
ζυγόν	zugon	ζυγ-	zyg-	yoke	syzygy, zeugma, zygon, zygospore, zygote
ζύμη	zumē	ζυμ-	zym-	leaven	azyme, enzyme, exoenzyme, isoenzyme, isozyme, lysozyme, pancreozymin, ribozyme, zymase, zymogen, zymology, zymosis, zymurgy

Η

(h)ē

Citation form		Root form		Meaning	English Derivative
ἡγεμῶν	hēgemōn	ἡγεμον-	hēgemon-	leader	eisegesis, exegesis, hegemony
ἡδύς	hēdus	ἡδυ-	hēdu-	sweet	hedychium
ἦθος	ēthos	ἠθ-	ēth-	moral	ethics, ethos
ἥλιος	hēlios	ἡλιο-	hēlio-	sun	anthelion, aphelion, helianthus, heliocentric, heliochrome, helion, heliodon, heliograph, heliography, heliometer, helioscope, helioseismology, heliostat, heliotropic, heliotropism, helium, parhelion, perihelion
ἡμέρα	hēmera	ἡμέρ-	hēmer-	day	ephemeral, ephemeris, ephemeron, hemera, hemeralopia, Hemerobiidae, hemerocallis, nycthemeron
ἠώς	ēōs	ἠο-	ēo-	dawn	eocene, eolith, eosin, eosinophil, eozoon

Θ

th

Citation form		Root form		Meaning	English Derivative
θάνατος	thanatos	θανατ-	thanat-	death	euthanasia, thanatology, thanatosis
θεός	theos	θε-	the-	a god	atheism, theocracy, theology, theism
θέσις	thesis	θέσ-	thes-	thesis	thesis
θεωρία	theōria	θεωρι-	theori-	theory	theory, theorem, theoretical
θεράπων	therapon	θεράπ-	therap-	waiting man, servant, service to others	aromatherapy, bibliotherapy, chemotherapy, cryotherapy, hydrotherapy, hypnotherapy, narcotherapy, physiotherapy, psychotherapy, radiotherapy, therapeutics, therapy
θερμός	thermos	θερμ-	therm-	hot	endothermic, exothermic, geothermic, hyperthermia, hypothermia, isotherm, thermal, thermochemistry, thermochronology, thermocouple, thermodynamic, thermoelectric, thermography, thermonuclear, thermoplastic, thermos, thermosphere, thermostat
θησαυρός	thēsauros	θησαυρ-	thesaur-	storehouse, treasure	thesaurus, treasure, treasury
θρηνῳδία	threnōĭdia	-	-	a dirge	threnody
θρόνος	thronos	θρον-	thron-	an elevated seat	dethronement, enthronement, throne
θέατρο	theatro	θέα-	thea-	building, part of a building, or outdoor structure used for the presentation of plays, films, or other dramatic performances. The act of performing.	, theater, theatre
θυρεοειδής	thureoeidēs	θυρεοειδ-	thyr(e)oid, thyr(e)o-	oblong shield, Galen calls the thyroid χόνδρος θυρεοειδής (shield-shaped cartilage)	thyroid, hypothyroidism, hyperthyroidism; thyroxine
θύω	thuo	θυ-	thy-	to sacrifice or kill	thyme

Ι

(h)i

Citation form		Root form		Meaning	English Derivative
ἰατρός	iatros	ἰατρ(ο)-	iatr(o)-	physician, healer	psychiatrist, geriatrics
ἴδιος	idiοs	ἰδιο-	idio-	one's own, pertaining to oneself, private	idiom, idiopathy, idiophone, idiosyncrasy, idiot
ἱερός	hieros	ἱερο-	hiero-	sacred	hierarchy, hieroglyph, hierocracy
ἴππος	hippos	ἱππ(ο)-	hipp(o)-	horse	hipparch, hippeastrum, hippocampus, hippodrome, hippogriff, hippology, hippophagy, hippophile, hippopotamus, hippuris, hippus, Phillip, Philippines
ἴσος	isos	ἱσο-	iso-	equal to, the same as	isobar, isocephalic, isochronous, isocracy, isokinetic, isomer, isometric, isomorphic, isopod, isosceles, isostacy, isothermal, isotonic, isotope, isotropic, anisotropic, pantisocracy
ἵστημι\ἵσταναι	histemi/histanai	ἵστo-, ἵστa-, sta-	histo-, hista-, sta-	to stand up or establish	anastasia, apostasy, astatic, ecstasy, epistasis, gyrostat, heliostat, histidine, histogram, histology, histone, homeostasis, hydrostatic, metastasis, stater, system, stadium, static, thermostat
ἱστορία	historia	ἱστορι-	histori-	history	ahistorical, history, historian,
ἰέναι	ienai	εἰ/οἰ/ἰ/ἰοντ-	ei-/oi-/i-/iont-	go	anion, ion
ἰχθύς	ikhthus	ἰχθυ-	ikhthu-	fish	ikhthus, ichthyology

Κ

k, c

Citation form		Root form		Meaning	English derivatives
καθέδρα	kathédra			chair	chair, cathedral, chaise
καίω	kaio			to light, set on fire	see καυστικός, καυστός, ἐγκαυστικός, ὁλόκαυ(σ)τος
κακός	kakos	κακο-	kako-	bad, evil	cacochymy, cacodemon, cacodyl, cacoethes, cacology, caconym, cacophony, cacotopia, cacoxenite
καλέω	kaleo	καλ- καλ-	kalo-, kalli-	to call or summon	ecclesiastic, paraclete
καλός	kalos	καλο- καλλι-	kalo-, kalli-	beautiful	calotype, calligraphy, calisthenics, kaleidoscope
καλύπτω	kalupto	καλυπτ- καλυψ-	kalypt- kalyps-	I cover	apocalypse, apocalypticism, calyptra, calyptrogyne, eucalyptus
κάμηλος < Semitic	kámēlos			camel	camel
κάναστρον	kánastron			wicker basket	canister
κάννα	kánna			reed	cane, cannon
κάνναβις	kánnabis			hemp	cannabis, canvas
κάμμαρος	kammaros	καμμαρ-	kammar-	sea-crab, lobster	gammaridae
κανών	kanōn			a rule	canon, canonical
καπνός	kapnos	καπνo-	kapno-	smoke	capnography, capnomancy, capnometer, capnomor, capnophile
καρπός	karpos	καρπ-	carp-	fruit, result, profit	acarpous, artocarpus, ascocarp, carpel, carpolite, carpology, dipterocarpaceae, discocarpus, endocarp, exocarp, hydnocarpus, lithocarpus, macrocarpa, mericarp, mesocarp, monocarpic, oligocarpus, parthenocarpy, pericarp, physocarpus, pilocarpine, podocarp, polycarpic, schizocarp, sporocarp, stenocarpus, trachycarpus
κάρυον	karuon	κάρυον	karuon	nut	dikaryon, eukaryotic
κατά	kata	κατά-	kat(a)-	downwards, along	acatalepsy, autocatalysis, catabolism, catachresis, cataclysm, catadioptrics, catagenesis, cataglottis, catalepsy, catalysis, catalog, cataphora, cataplasm, cataplexy, catapult, cataract, catarrh, catasetum, catastasis, catasterism, catastrophe, catastrophic, catastrophism, catatonia, katabasis, catoptric, catoptromancy, catoptrophobia
καυστικός	kaustikós	καυστικ-	caustic-	capable of burning, caustic	caustic, encaustic
καυστός	kaustós			capable of being burnt	holocaust
κεντέω	kenteo	κέντ-	cent-	to prick (a point), goad, sting	amniocentesis, androcentrism, anthropocentrism, center, central
κέρας	keras	κερατ(ο)-	kerat(o)-	horn	ceratopsid, ceratosaurus, keratin, rhinoceros, triceratops
κεραυνός	keraunós	κεραυνo-	kerauno-	a thunderbolt	ceraunics, ceraunograph, ceraunomancy, ceraunoscopy, keraunomedicine, keraunoparalysis, keraunopathy
κεφαλή	kephalē	κεφαλ-	cephal-	head	acanthocephalan, acephaly, acrocephalas, anencephalic, bicephalous, brachycephalic, cephalalgia, cephalomancy, cephalopod, cephalothorax, cephalic, encephalitis, hydrocephalus, isocephalic, macrocephalic, microcephalic
κηρός	keros	κηρό-	kero-	bees-wax	cere, ceromancy, kerosene
κήτος	kētos	κητο	kēto-	sea monster, whale	cetacea, cetology
κιθάρα	kithara	κιθαρ-	kithar-	lute	guitar, zither
κινῆσθαι	kinēsthai	κινησι-	kines-	to move, motion	kinetic energy, kinesis, psychokinesis
κίνημα	kinēma	κινηματ-	kinemat-	movement	cinema, cinematic, cinematography
κίρκος, κρίκος	kírkos, kríkos			ring, circle	circus, circle
κίστη	kístē			a box or chest	chest (furniture), cistern
κλάω	klaó	κλα-	cla-	to break or break off	clastic, iconoclast, pyroclastic
κλέπτω	klépto	κλέπτ-	klept-	thief	clepsydra, kleptarchy, klepto, kleptocracy, kleptomania, kleptophobia
κλῆρος	kléros	κλῆρ-	cler-	lot, portion	cleric, clerk, cleromancy, kleroterion
κλίνω	klino	κλι-	kli-	to make slope or slant, to bend, to rest	aclinic, anticlimax, anticline, autoclitic, climate, climatic, climatology, climax, cline, clinic, clinomania, clinotherapy, geosyncline, matroclinous, monoclinic, syncline, synclitic, thermocline, triclinic
κλών	klōn	κλων-	klōn-	branch, twig	clone
κόλλα	kólla	κόλ-	col-	glue	collage, collagen, collin, colloid, protocol
κόκκος	kókkos			berry	coccoid, coccolithophore, coccus, diplococcus, Enterococcus, Sarcococca, Staphylococcus, Streptococcus
κόκκυξ	kókkyx	κόκκυγ-	coccyg-	cuckoo	coccygodynia, coccyx
κολοσσός, κολοττός	kolossos, kolottos			a statue of a person, especially a large one used in ritual	Colossus, colosseum, colossal
κόμμα	kómma			a cut-off piece, short clause	comma
κόπρος	kópros	κόπρο-	koprο-	dung, manure	coprolalia, coprolite, coprology, coprophagy, coprophilia
κόπτω	kóptō	kop-	kop-	cut, cut off, strike, smite	apocope, coppice, copse, syncopate
κόσμος	kósmos	κοσμ-	kosm-	order, the universe, jewel	cosmetic, cosmography, cosmology, cosmological, cosmic, cosmical, cosmopolitan
κράτος	kratos	κρα-	cra-	power, rule	androcracy, arithmocracy, aristocracy, autocracy, bureaucracy, democracy, gerontocracy, hagiocracy, hierocracy, isocracy, kleptocracy, meritocracy, mesocracy, mobocracy, moneyocracy, ochlocracy, pedantocracy, pigmentocracy, plutocracy, psephocracy, stratocracy, slavocracy, technocracy, theocracy, timocracy
κρίνω	krinō	κρίσ-, κρίτ-, κρίν-	cris-, crit-, crin-	to judge or decide	apocrine, crisis, critic, diacritic, endocrine, hypocrite
κριτήριον	kritērion			a test or standard	criterion
κρόκος < Semitic	krókos			crocus, saffron	crocus
κρύος	kruos	κρυ-	cry-, cru-	frost, ice, cold	cryobiology, cryogenic, cryolite, cryonics, cryophilic, cryopreservation, cryoprobe, cryoprotectant, cryoscope, cryosphere, cryostat, cryosurgery, cryotherapy, crystal
κρύσταλλος	krýstallos		crystallo-	clear ice, rock crystal	crystal
κρυπτός	kruptos	κρυπτ-	krupt-	hidden	apocrypha, cryptology, encryption
κῦδος	kūdos	κυδ	kūd-	glory, fame	kudos
κύκλος	kuklos	κυκλ(ο)	kukl(o)-	ring, circle, round	bicycle, cyclamen, cycle, cyclic, cyclomancy, cyclone, cyclops, cyclorama, cyclotron, encyclopedia, motorcycle, recycle, tetracycline, tricycle, unicycle
κῦμα	kuma	κυματ	kumat-	wave	cymatium, myokymia
κύμβαλον	kýmbalon			cymbal	cymbal, chime (?), cimbalom
κύμῑνον < Semitic?	kýmīnon			cumin	cumin
κυπάρισσος	kypárissos			cypress	cypress
Κύπρος	Kýpros			Cyprus	copper
κυριακός	kyriakós	κυριακὸν (δῶμα)		(house) of the lord	church
κύτος	kýtos	κυτ-	kut-	hollow, receptacle	cyto- (cell): cytology, cytoplasm, cytosine, cytotoxic; -cyte (type of cell): leukocyte, lymphocyte, oocyte, phagocyte, pinocytosis, syncytial
κύων, κυνός	kuōn, kunos	κυν-	kun-	dog	cynanthropy, cynic, cynicism, cynocephaly, cynodont, cynosure
κύστη	kustē	κυστ-	kust-	cyst, bladder	cyst, cystectomy, cysteine, cysticercosis
κῶμα	kōma	κωμ-	koma-	deep sleep	coma
κῶμoς	kōmos	κωμ-	com-	village festival, merry-making	comedy, comic, encomium

|- |κώνος || kṓnos || || || pine-cone, spinning top, geometrical cone || cone

Λ

l

Citation form		Root form		Meaning	English derivative
λαμβάνω / λήψω	lambanō, lepso	λήψ-	leps-	receive, take, seize	epilepsy, narcolepsy
λαός	laos	λαο-	lao/laik-	people	laic, laicism, laity
λάτρον	latron	λατρ-	latr-	pay, hire (a servant)	archæolatry, astrolatry, autolatry, bardolatry, basileiolatry, chronolatry, cosmolatry, cynolatry, demonolatry, gastrolatry, goniolatry, hagiolatry, heliolatry, hierolatry, hydrolatry, ichthyolatry, idolatry, litholatry, lordolatry, Mariolatry, martyrolatry, necrolatry, phytolatry, plutolatry, poetolatry, pseudolatry, pyrolatry, theolatry, theriolatry, topolatry, vexillolatry, zoolatry
λέγω	legō	λεγ/λογ-	leg-/log-	to say or choose	analects, eclectic, dialect, epistemology, phraseology
λήθαργος	lēthargos	ληθαργ-	letharg-	forgetful	lethargy, Lethe
λείριον	leírion			lily	lily; liriodendron
λέξις	lexis	λεξι-	lexi-	word	alexia, dyslexia, lexicography, lexicon
λέων	léōn	λεοντ-	leont-	lion	lion; leontiasis, leontodon
λεόπαρδος	leópardos			leopard	leopard
λευκός	leukos	λευκο-	leuko-	white	leukemia, leukocyte, leucogranite, leucoma
λήγω	lēgo	ληγ-	leg-	to cease or stop	acatalectic, catalectic
λἢμμα	lēmma	λημμα-	lemma-	assumption, premise	dilemma, lemma
λίθος	lithos	λιθο-	litho-	stone	acrolith, batholith, coccolith, coprolith, cystolith, eolith, gastrolith, laccolith, lithate, lithiasis, lithography, lithology, lithomancy, lopolith, megalith, microlith, monolith, neolithic, otolith, paleolith, Paleolithic, phacolith, phytolith, protolith, regolith, tonsillolith, xenolith
λόγος	logos	λογο-	logo-	thought, word	analogy, anthology, anthropology, apology, biology, cardiology, catalog, dialogue, epilogue, gemology, geology, horology, logic, logotype, mineralogy, monologue, oncology, oology, ophthalmology, paleontology, pathology, philology, prologue, tetralogy, trilogy, theology, typology, zoology
λύω	luō	λυ-/λυ-σι-	lū-si-	break, loosen, dissolve	analysis, catalysis, dialysis, electrolysis, hydrolysis, lysis, paralysis, Lysistrata

Μ

m

Citation form		Root form		Meaning	English derivatives
μαθηματικός	mathēmatikos	μαθηματικ-	mathēmatik-	fond of learning	mathematical, mathematics, polymath
μακρός	makros	μακρο-	makro-	long	macrobiotic, macroeconomics, macron
μάλαγμα	malagma	μαλαγματ-	amalagmat-	that can be softened	amalgam, amalgamation
μανία	mania	μανί-	mani-	madness, passion, frenzy	arithmomania, bibliomania, dipsomania, egomania, erotomania, graphomania, hippomania, hypermania, hypomania, kleptomania, mania, megalomania, micromania, monomania, morphinomania, narcomania, nymphomania, oniomania, plutomania, pyromania, trichotillomania
μανός	manos	μαν-	man-	loose, rare	manograph, manometer, manoscope
μάντις	mantis	μαν-	man-	one who divines, see, prophet	ailuromancy, alectryomancy, aleuromancy, amniomancy, anthropomancy, arachnomancy, arithmancy, astromancy, austromancy, belomancy, bibliomancy, botanomancy, capnomancy, cartomancy, catoptromancy, cephalomancy, ceraunomancy, ceromancy, chiromancy, chronomancy, cleromancy, cyclomancy, dactyliomancy, daphnomancy, demonomancy, enoptomancy, felidomancy, geomancy, gastromancy, geomancy, gyromancy, halomancy, heiromancy, hippomancy, hydromancy, ichthyomancy, kephalomancy, lampadomancy, lecanomancy, lithomancy, logomancy, metopomancy, myomancy, necromancy, narcomancy, oenomancy, oneiromancy, onomancy, ophiomancy, orthinomancy, osteomancy, pedomancy, pegomancy, praying mantis, psephomancy, psychomancy, pyromancy, rhabdomancy, rhapsodomancy, scapulimancy, sciomancy, selenomancy, spodomancy, technomancy, tephramancy, tasseomancy, theomancy, zoomancy
Μαραθών	Marathōn	–	–	a place-name, Marathon	marathon, the non-Greek back-formation -athon: walkathon
μάρμαρος	marmaros	μαρμ-	marm-	crystalline rock	marble
μαρτυρία	marturia	μαρτυρ-	martur-	testimony	martyr
μαστός	mastos	μαστ-	mast-	breast	mastectomy, mastitis, mastodon, mastoid
μέγας, μέγιστος	megas, megistos	μεγα- μεγαλο-	mega- megalo-	big, great, large; greatest	megabyte, megafauna, megaphone, megalomania, megalopolis; almagest (via Arabic), Hermes Trismegistus
μέθοδος	methodos	μεθοδ-	method-	following after, pursuit, method, system	method, methodical, Methodist
μέλας	melas	μελαν-	melan-	pigmented, black, ink	melancholy, melanesia, melanie, melanocyte, melanoma
μέλος	melos	μέλο-	melo-	music, song, melody	melodrama, melody, melisma
μέσος	mesos	μέσο-	meso-	middle, between, in the midst of	mesial, Mesoamerica, mesocracy, mesoderm, mesolithic, mesomorphic, mesosphere, Mesozoic
Μεσσίας	Messias	Μεσσία-	Messia-	Messiah, the Anointed One	Messiah, messianic
μέταλλον	metallon	μεταλλ-	metal-	mine, quarry, metal	metal, metallic, metalloid, trimetallic
μετέωρος	meteōros	μετεωρ-	meteor-	raised from the ground, hanging	meteor, meteorite, meteoroid, meteorology
μετρώ	metrō	μετρ-	metr-	I measure	diameter, geometry, horometry, metre, metrology, symmetry
μήτηρ	meter	μήτηρ-	matr-	mother	endometriosis, endometrium, matriarch, matroclinous
μήνη	mēnē	μήν-	mēn-	moon	meniscoid, meniscus, menispermum
μηχανή	mēkhanē	μηχαν-	mēchan-	machine	machine, mechanics, mechanism
μικρός	mikros	μικρο-	mikro-	small	micron, microscope
μῖμος	mimos	μιμ-	mim-	imitator	mime, mimesis, mimetic, mimic
μῖσος	misos	μισ-	mīs-	hatred	misandry, misanthrope, misogyny
μίτος	mitos	μίτ-	mit-	thread	mitochondrion, mitogen, mitogenesis, mitome, mitosis
μνῆμη	mnēmē	μνη-	mne-	memory	amnesia, amnesty, Mneme, mnemonic
μοναστήριον	monastḗrion			monk's cell, monastery	monastery
μόναρχος	mónarkhos			absolute ruler	monarch
μοναχός	monakhós			solitary	monk
μόνος	monos	μονο-	mon-, mono-	alone, only, single	monarchy, monastery, monatomic, monk, monoceros, monochromatic, monocle, monoculture, monogamy, monogeny, monogram, monograph, monolith, monologue, monomania, monomer, monometallic, mononuclear, monophysite, monoplane, monopoly, monopsony, monorail, monosyllable, monotheist, monotony, monotype, monoxide
μορφή	morphē	μορφ-	morph-	form	amorphous, anamorphic, anthropomorphous, biomorphous, dimorphous, ectomorph, endomorph, heteromorphic, isomorphic, mesomorph, metamorphosis, morph, morpheme, Morpheus, morphine, morphology, morphometrics, pleomorphic, polymorphism, pseudomorph
μωρός	mōros	μωρο-	moro-	dull	moron, oxymoron
Μοῦσα	Mousa	μουσ-	mous-	a patron goddess of the arts	Muse, museum, music
μῦθος	muthos	μυθ-	myth-	word, speech, tale, story	myth, mythical, mythography, mythology
μύκης	mukēs	μυκητ-	mukēt-	mushroom, fungus	classical roots are myces, myceto-, -mycete: actinomycetes, apophysomyces, gasteromycete, oomycete; but the most common form is the non-classical myco-: mycology, mycosis, mycophage; other irregular formations include -mycin: streptomycin, erythromycin, gasteromycete, mycology, mycosis, oomycete
μῦς	mus	μυο-	muo/myo-	mouse, muscle	myo-, fibromyalgia, muscle, myasthenia, myoblast, myocarditis, myoclonus, myocyte, myoglobin

Ν

n

Citation form		Root form		Meaning	English Derivative
νάνος	nanos	νανο-	nano-	dwarf	nanometry, nanosecond, nanotechnology
νάρκισσος	nárkissos			Narcissus	narcissus
νάρθηξ	narthēx	ναρθηκ-	narthek	giant fennel	narthex
νάρκη	narkē	νάρκ-	narc-	numbness, deadness	narcoanalysis, narcodiagnosis, narcodollar, narcohypnosis, narcolepsy, narcology, narcomancy, narcomania, narcosis, narcosynthesis, narcoterrorism, narcotherapy, narcotic
ναυτικός	nautikos	ναυτ-	naut-	sailor, ship	aeronautics, astronaut, astronautics, naumachia, nausea, nautical, nautilus
νεκρός	nekros	νεκρο-	nekro-	dead, a corpse	necromancy, necrophilia, necrophobia, necropolis, necrosis, nectar
νέος	neos	νεο-	neo-	new, young	neon, neologism, neolithic, neopaganism, neophyte, neo-
νεῦρον	neuron	νευρ(ο)-	neur(o)-	nerve, sinew	neuralgia, neurapraxia, neurasthenia, neurectomy, neurine, neuritis, neurobiology, neurochemistry, neurogenesis, neurolemma, neurolinguistics, neurology, neuron neuropathy, neurosis
νεφρός	nephros	νεφρ(ο)-	nephr(o)-	kidney	nephrectomy, nephritis, nephrology, nephron, nephropathy, nephrosis, nephrotomy
νίκη	nikē	νικ-	nik-	victory	Berenice, Veronica, Nike
νόος	noos	νοο-	noo-	mind	noosphere, nootropic, paranoia, paranoid
νόσος	nosos	νοσο-	noso-	disease	nosology
νόστος	nostos	νοστ-	nost-	return home	nostalgia, nostalgic, nostos
νύμφη	numphē	νύμφ-	nymph-	a bride, daughter-in-law	nymph, nymphette nympholepsy, nymphomania

Ξ

ks

Citation form		Root form		Meaning	English Derivative
ξανθός	xanthos	ξανθ-	xanth-	yellow	Xanthippe, xanthene, xanthine, xanthophyll, xanthosis, xanthous
ξένος	xenos	ξενο-	xeno-	strange, stranger, guest	xenia, xenon, xenophobia, xenophobic, xenopus
ξηρός	xēros	ξηρο-	xer(o)-	dry	xeric, xerography, xerophyte, xerophthalmia, xerox
ξίφος	xiphos	ξιφ-	xiph-	sword	xiphias, xiphoid
ξύλον	xulon	ξυλ-	xul-	wood	xylan, xylem, saproxylic, xylene, xylitol, xylography, xylophone, xylyl
ξύω	xuo	ξυ-	xy-	scrape	xyster, xyston, xystus

Ο

"homo-" redirects here. For the organic chemistry prefix, see Homologous series.

(h)o

Citation form		Root form		Meaning	English derivative
ὅδύνη	odyne	ὅδύν-	odyn-	pain of body or mind	anodyne, omodynia, otodynia
ὅγκος	onkos	ογκο-	onko-	mass, bulk	oncogene, oncogenesis, oncology
ὀδούς	odous	ὀδοντ-	odont-	tooth	acrodont, aerodontics, endodontist, exodontist, mastodon, orthodontia, periodontist
οἷκος	oikos	οἰκο-	oiko-	house	androecium, ecocentrism, ecology, ecomuseum, econometrics, economics, economism, economy, ecophysiology, ecopoiesis, ecoregion, ecosphere, ecosystem, ecotechnology, ecotone, ecotourism, ecotoxicity, ecotoxicology, ecotype, ecozone, macroeconomics, microeconomics, oeconomus, parish, synoecism
οἶνος	oinos	οἰνο-	oino-	wine	oenology, oenomel, oenophile, oinomancy
οκτώ	oktō	οκτ-	okt-	eight	octagon, octopus
ὀλίγος	oligos	ὀλιγο-	oligo-	few, little	oligarchy, Oligocene, oligomer, oligopoly, oligotroph
ὅλο(ς)	holos	ὁλ(o)-	hol(o)-	whole, total, entire	holistic, holocaust, holocene, hologram, holograph, holomorphic, holophrastic
ὁλόκαυστος	holókaustos			burnt whole (of a sacrifice)	holocaust
ὅμο-	homo-	ὁμο-	homo-	same	homogeneity, homology, homomorphism, homophone, homosexuality
ὅμοιος	homoios	ὁμοιο-	homoio-	similar	homeomorphism, homeopathy, homeoptoton, homeosis, homeostasis, homeoteleuton, homeothermic
ὄνομα	onoma	ονομ-	onom-	name, character, fame	acronym, allonym, anonymous, anthroponym, antonomasia, antonym, aptronym, autonym, backronym, basionym, capitonym, charactonym, consonym, contronym, cryptonym, demonym, endonym, eponym, ethnonym, exonym, geonym, heteronym, holonym, homonym, hydronym, hypernym, isonym, meronym, metonymy, mononym, necronym, numeronym, odonym, onomancy, onomastic, onomatechny, onomatopoeia, orthonym, paranomasia, patronym, phytonym, pseudonym, retronym, synonym, tautonym, textonym, theonym, toponym, troponym
ὀξύς	oxus	ὀξυ-	oxu-	sharp, acid, sour	hyperoxaluria, oxalis, oxamide, oxidation, oxide, oxoacid, oxycephaly, oxycodone, oxygen, oxygenation, oxymoron
ὄπιον	opion			poppy juice, opium	opium
ὀπτός	optos	οπτ-	opt-	visible	catoptric, catoptromancy, catoptrophobiaoptic, optical, dioptre, panoptic
ὄραμα	orama	ὄραματ-	oramat-	a sight	diorama, panorama
Ὁρμή	Horme	Ὁρμ-	horm-	god of impulse, effort, eagerness, setting oneself in motion	hormone, pheromone
ὄργανον	organon	ὀργαν-	organ-	organ, instrument, tool	organ, organic, organism, organization, organize
ὄρεξις	oreksis	ὀρεξ-	orex-	appetite, mood	anorexia
ὀρθός	orthos	ὀρθ-	orth-	straight, correct, normal	orthography, orthogonal, orthodoxy
ὄρνις	ornis	ὀρνιθ-	ornith-	bird	Ornithodelphia, ornithology, ornithomancy
ὅρος	horos	ὂρο-	hor-	limit, boundary	aphorism, horizon, horizontal, horopter
ὀρφανός	orphanos	ὀρφαν-	orphan-	bereaved, an orphan	orphan, orphanage
ὀστέον	osteon	ὀστεο-	osteo-	bone	osteoarthritis, osteology, osteopathy, osteoporosis
ὄστρακον	ostrakon	ὀστρακ-	ostrac-	tile, shell	ostracism, ostracize, ostracon
ὄστρεον	ostreon	ὀστρεο-	ostreo-	oyster	ostreophagist, oyster
οὐ	ou	οὐ-	ou-	not	utopia
οὖς	ous	ὠτο-	ot-	ear	aotus, myosotis, otalgia, otic, otolith, otology, otophyma, otoplasty, otosclerosis, otoscope, parotid, periotic
ὄφις	ophis	ὄφι-	ophi-	snake, serpent	ophicleide, ophidian, ophiomancy, ophidiophobia, ophiolatry, Ophisaurus, Ophiuchus
ὀφρῦς	ophrys	ὄφρῦ-	ophry-	eyebrow, ridge	Actinophrys, ophryitis, Ophryocystis, Ophryotrocha
ὀφθαλμός	ophthalmos	οφθαλμ-	ophthalm-	eye	ophthalmia, ophthalmic, ophthalmology

Π

p

Citation form		Root form		Meaning	English Derivative
παιδεία	paideia	-παιδεια/παιδει-	-paideia/paidei-	education, culture	encyclop(a)edia, Wikipedia
παιωνία	paiōnia			peony < physician < healing	peony
παῖς	pais	παιδ-	ped-	boy, child	encyclopedia, hypnopedia, orthopedic, pediatrician, pedagogue, pedant, pederast, pedophilia, pederast, posturpedic
πάθος	pathos	παθ-	path-	that which happens, incident, accident, passion, emotion, feeling	apathy, anthropopathy, antipathy, empathy, idiopathy, osteopathy, pathos, pathology, pathetic, pathogen, psychopath, empathy, sympathy
παλαιός	palaios	παλαι(ο)-	palai(o)-	ancient, old	paleoanthropology, paleobiology, paleobotany, Paleocene, paleoecology, paleogeology, paleography, paleolithic, paleontology, Paleozoic, paleoseismology, paleogeography
πάλιν	palin	πάλιν-	palin-	back, backwards, again	palimpsest, palindrome, palinode
πάνθειος	pantheios			relating to all the gods	pantheon
πάνθηρ	panthēr			large spotted cat	panther
παπᾶς, πάππας	papás, páppas			daddy, bishop	pope
παρά	para	παρ(α)-	par(a)-	alongside of, by, past, beyond, against	parable, paracentesis, paraclete, paradigm, paradox, paraesthesia, paragon, paragraph, paralanguage, paralegal, parallax, parallel, paralipsis, paralysis, paramagnetic, paramecium, paramedic, parameter, paramilitary, paranoia, paranormal, paraphernalia, paraphilia, paraphrase, paraplegia, paraprofessional, parapsychology, paraquat, parasite, parasympathetic, parataxis, paregoric, parenchyma, parenthesis, paresis, parhelion, parish, paronchyia, parody, paronomasia, paronym, parotid, parousia, paroxysm
παράδεισος (< Persian)	parádeisos			a Persian park, heaven, where souls await resurrection	paradise, parvis
παραμετρέω	parametrēō	παραμετ-	paramet-	measure one thing by another, compare	parameter, parametrise
πᾶς	pas	παν-, παντο-	pan-, panto-	all, complete	pantheism, pantomime, panacea, pandemic
πατήρ	patēr	πατρ-	patr-	father	patriarch
πάτριος	patriοs	πατρι-	patr-	fatherland, country	patriot, patriotic, patriotism
πεῖρα	peira	πειρα-	peira-	trial, attempt, attack	pirate, piracy
πείρα	peira	πειρ-	peir-	experience	empirical, empiricism
πέλαγος	pelagos	πέλαγο-	pelago-	the sea, the deep	abyssopelagic, archipelago, hadopelagic, pelagic
πέμπω	pempo	πεμπ-	pemp-	to send or dispatch	apopemptic, hypnopompic, pomp, pompous
πεντείκοντα	penteíkonta	πεντείκo-	penteco-	fifty	pentecost, pentecostal
περί	peri	περι	peri	around	perimeter, period, periphrasis, peridotite
πέτρα	petra	πετρ-	petr-	rock	petrify, petroleum, petrology, petrography, petrophysics
πετροσέλινον	petrosélinon			parsley	parsley
πλαστός	plastós	πλάστ-	plast-	formed or molded	abdominoplasty, angioplasty, arthroplasty, blepharoplasty, cheiloplasty, galvanoplasty, genitoplasty, homeoplasty, homoplasty, kleptoplasty, mastoplasty, neoplasty, neuroplasty, otoplasty, osteoplasty, palatoplasty, plastic, plasma, plaster, rhinoplasty, septoplasty, strictureplasty, thoracoplasty, thyroplasty, vaginoplasty, zooplasty
πλατύπους	plātýpous		platy-	flat-footed	platypus
πλατύς/-εῖα	plātýs	πλατυ-	platy-	wide, flat	place, plaza, piazza; platy-; possibly plat, plate
πλείων	pleiōn	πλειω-/πλεο-	pleio/-pleo	more, abundance, to be full	pleiotropy, pleochroism, pleocytosis, pleomorphism, pleonasm, pleonaste, pleonexia, plethora, Pliocene
πληγή	plēgē	πληγ-	pleg-	stroke	diplegia, paraplegia, plague
πλοῦτος	ploutos	πλοῦτο-	pluto-	riches, wealth, abundance, Pluto (god of underworld)	plutarchy, plutocracy, plutolatry, plutomania, plutonic, plutonium, plutonomic
ποιέω	poieō	ποιε-	poie-/poe-	make, do, create	poem, poet
πόλεμος	polemos	πολεμ-	polem-	war	polemic, polemical
πόλις	polis	πολ-	pol-	city	megalopolis, metropolis, polis, political, police, polity, politics
πόλος	polοs	πολ-	pol-	axis, sky	pole (in the geographic, scientific, and mathematical senses), polar, bipolar, Polaris, polarity, polarization
πολύς	polus	πολυ-	polu-	many, much	hoi polloi, polygamy, polyglot, Polynesia, polyphony, polytechnic, polytonic
πόρνη	porne	πόρν-	porn-	prostitute	pornography
πορϕύρα	porphýra			Murex snails producing Tyrian purple	purple, porphyry, porphyr-
ποταμός	potamos	ποταμ-	potam-	river	hippopotamus, Mesopotamia, Potamogalinae
ποῦς	pous	ποδ-	pod	foot	amblypoda, amphipod, arthropod, bipod, brachiopod, branchiopod, cephalopod, chenopod, decapod, gastropod, gnathopod, heteropoda, isopod, lagopus, macropod, myriapod, octopus, Oedipus, ornithopod, pauropod, podiatrist, platypoda, platypus, prosauropod, pseudopod, sauropod, tetrapod, theropod, tripod, xenopus
ποδάγρα	podágra			foot trap, foot disease, gout	podagra
πρᾶγμα	pragma	πρᾶγμα	pragma	thing done, fact	pragmatic, pragmatism
πράσσω	prasso	πραγ-	prag-	to do, to act	praxis, chiropractor, impractical, malpractice, practical, practice, practitioner,
πρεσβύτερος	presbuteros	πρεσβυτερ-	presbuter-	elder, older	priest, presbyopia, presbyter, presbytery
πρό	pro	προ-	pro-	before	problem, proboscis, proclitic, procrustean, procyon, prodrome, proem, progeria, prognosis, program, prokaryote, prolegomenon, prolepsis, prologue, Prometheus, promnesia, propaedeutic, propane, prophylactic, prophet, proscenium, prostate, prostomium
πρός	pros	προs-	pros-	to, towards, with	proselyte, prosody, prosopopeia, prosthesis,
πρῶτος	prōtos	πρωτ(ο)-/πρωθ-	proto-/proth-	first	hysteron proteron, protagonist, prothonotary, protocell, protocol, protoconch, protocone, protolith, proton, protonema, protoplanet, protoplasm, protoplast, protosome, protostar, prototheria, prototype, protozoa
πτερόν	pteron	πτερ(ο)-	pter(o)-	wing	helicopter, Lepidoptera, ornithopter, pteranodon, Pterichthyodes, pterodactyl, pterosaurus
πύξις, πύξος	pýxis, pýxos			boxwood, box	box, pyx, pyxis
πῦρ	pyr	πυρ(ο)-	pyr(o)-	fire	antipyretic, chalcopyrite, pyrite, pyroclastic, pyrography, pyrokinesis, pyrology, pyrolysis, pyromancy, pyromania, pyrotechnics
πύργος	pýrgos	πυργ-	pyrg-	tower, castle, fortress	pyrgoidal, burgh (perhaps)

Ρ

r(h)

Citation form		Root form		Meaning	English Derivative
ῥάβδος	rhabdos	ῥαβδ-	rhabd-	rod	rhabdite, rhabditida, rhabdology, rhabdomancy, rhabdovirus
ῥαψῳδός	rhapsōdos	ῥαψῳδ-	rhapsod-	reciter of Epic poetry	rhapsode, rhapsody
ῥέω	rheó	ῥέ-	rrhea-, rhe-, rheum-	flow	catarrh, gonorrhea, hemorrhoid, leukorrhea, logorrhoea, rheum, rheumatoid
ῥῆον βάρβαρον	rēon bárbaron			barbarian rhubarb	rhubarb
ῥητορεία	rhētoreia	ῥητορ-	rhetor-	oratory	rhetoric
ῥίζα	rhiza	ῥίζ(ο)-	rhiz(o)-	root	corallorhiza, rhizobium, rhizome, rhizophagy, rhizophora
ῥίς	rhis	ῥιν-	rhin-	nose	rhinencephalon, rhinitis, rhinoceros, rhinolith, rhinoplasty
ῥόδον	rhodon	ῥοδο-	rhodo-	rose, red	rhododendron, rhodium
ῥόμβος	rhombos	ῥομβ(ο)-	rhomb(o)-	rhombus	rhombus
ῥυθμός	rhythmos	ῥυθμ-	rhythm-	measured flow or movement, rhythm	arrhythmia, biorhythm, polyrhythm, rhythm
ῥῶ	rhō	ῥῶ/ῥωτ-	rho-/rhot	the letter rho	rhotacism

Σ

s

Citation form		Root form		Meaning	English Derivative
σάββατον	sabbaton	σάββατ-	sabbat-	sabbath	sabbat, sabbatarian, sabbath, sabbatical
σαγήνη	sagene			fishing dragnet	seine (via Latin and Germanic)
σάκκος	sakkos	σάκκ-	sack-	sackcloth	sack, sackcloth, sarcoidosis, sarcoma
σάλπίζω	salpizo	σάλπ-	salp-	to sound a trumpet	hydrosalpinx, salpinx
σανδάλον	sandalon	σανδάλ-	sandal-	wooden sole bound by straps around ankle	sandal
σανίς	sanis	σανί-	sani-	board, plank	sanidine
σάρξ	sarx	σαρκο-	sarko-	flesh	sarcophagus, sarcasm, sarcoidosis, sarcoma
σαῦρος	sauros	σαυρο-	sauro-	lizard	ankylosaurus, brachiosaurus, brontosaurus, ceratosaurus, dinosaur, elasmosaurus, mosasaurus, plesiosaurus, Saurida, stegosaurus, tyrannosaurus
σείω	seió	σεί-	sei-	to shake or move back and forth	aseismic, bradyseism, cryoseism, microseism, seismic, seismocardiography, seismogram, seismograph, seismology, seismometer
σήπω	sepo	σήπω-	sapro-	to make rotten or putrid	saprophagy, saprophyte, saprozoic
σθένος	sthenos	σθέν-	sthen-	strength	asthenia, asthenosphere, calisthenics, myasthenia, neurasthenia
σκέλλω	skello	σκελ-, σκληρ-	skel-, scler-	to dry, dry up, harden	arteriosclerosis, endoskeleton, exoskeleton, sclera, sclerosis, scleroderma, skeleton
σκέλος	skelos	σκελ-	scel-, skel-	leg	isosceles, triskelion
σκεῦος	skeuos	σκευ-	skeu-	vessel, implement	skeuomorph
σκέπτομαι	skeptomai	σκέπ-, σκοπ-	skep-, scop-	view, examine, consider	bronchoscopy, colonoscopy, colposcopy, cystoscopy, fluoroscopy, geloscopy, gyroscope, horoscope, hygroscopic, kaleidoscope, microscope, periscope, ophthalmoscope, oscilloscope, scope, skeptic, stethoscope, stereoscope, stroboscope, telescope
σκηνή	skéné	σκην-	sken-	a tent, tabernacle, a wooden acting stage	parascenium, proscenium, scenario, scene, scenic
σκολιός	skolios	σκολι-	skoli-	crooked, perverse, unfair, curved, tortuous	scolex, scoliosis
σκιά	skia	σκι-	sci-	a shadow, thick darkness, an outline	sciomancy, sciaphobia
σοφία	sophia	σοφι-	sophi-	knowledge, wisdom	philosophy, sophisticate, sophistry, sophomore
σπείρω, σπέρμα, σπορά	speiro, sperma	σπείρ-, σπέρματ-	spor-	sow (seed), spread, scatter	diaspora, spore, sporophyte, sperm (angiosperm), gymnosperm, sperm(at)- (spermicide, spermaticide)
σπογγιά	spoggiá		spongio-	sponge	sponge
στέλλω	stélló	στελ-	stle-, stol-	put, place, equip, arrange, send	apostle, diastole, diastolic, epistle, hypodiastole, systole, systolic
στῆθος	stéthos	στῆθος-	stethos-	breast, chest	stethoscope
στήλη	stēlē	στηλ-	stel-	block of stone	stele, stolon
στίγμα	stigma	στιγματ-	stigmat-	point	stigma, astigmatism
στρέφω	strepho	στροφ-	stroph-	to turn or twist	anastrophe, antistrophe, apostrophe, boustrophedon, catastrophe, epistrophe, strophe
σύν	sún	συν-	syn-, sys-	with, in company with, together with	asynchronous, asyndetic, asystole, chemosynthesis, ecosystem, geosyncline, idiosyncrasy, photosynthesis, polysynthesis, symphony, symposium, synagogue, synallagmatic, synapse, sync, syncretism, synchronize, syncline, syncopate, syncytial, syndetic, syndicate, syndrome, synecdoche, synechia, synergy, synesthesia, synod, synonym, synopsis, syntax, synthesis, systaltic, system, systolic
σφήν	sphēn	σφήν(ο)-	sphēn(o)-	wedge	disphenoid, sphene, sphenocrates, sphenodontia, sphenoid
σφήξ	sphēx	σφηκ-	sphēk-	wasp	sphecidae, sphex
σχήμα	skhēma	σχηματ-	skhēmat-	shape, form	scheme, schematic
σχίσμα	schisma	σχί-	schi-	division, a cleaving	schism, schist, schistosomiasis, schizophrenia
σχολή	skholē	σχολ-	skhol-	leisure, school	school, scholar, scholium, scholastic

Τ

t

Citation form		Root form		Meaning	English derivative
τάλαντον	tálanton			balance, weight, sum of money	talent
τάξις, τακτική < τάσσειν	taxis, taktikē	ταξι-	taxi-, -tactic	arrangement	parataxis, phototaxis/phototactic, syntax, taxidermy, taxon, taxonomy, thermotaxis, tactics
ταχύς	takhus	ταχυ-	tachy-	quick, swift, fast	tachometer, tachycardia, tachygraphy, tachylite, tachyon
τελώνιον	telṓnion			toll-house	toll
τέλος	telos	τελεσ-/τελε(ο)-	teles-/tele(o)-	end	teleology, teleonomy, teleostome
τέμνω	temnō	τεμ-, τομ-	tem-, tom-	cut, incision	anatomic, anatomist, anatomy, atomic, atomizer, cholecystectomy, corectomy, craniotomy, cystotomy, dichotomy, entomology, entomophagous, episiotomy, lithotomy, lobotomy, mastectomy, oophorectomy, tomography, tonsillectomy, tracheotomy, vasectomy
τῆλε	tēle	τηλε-	tele-	afar, far off	telegram, telegraph, telemetry, telepathy, telephone, telescope, telethon, television
τηλεσκόπος	tēleskópos			far-seeing (of an eye)	telescope
τέτταρες	tettares	τετρα-	tetra-	four	oxytetracycline, pentylenetetrazol, tetracaine, Tetragrammaton, tetrahedron, tetralogy, tetrapod, tetrarchy
τίθημι	tithémi	θη-	the-	put, place, set down	hypothesis, parenthesis, prosthesis, synthesis, theme, thesaurus, thesis
τίκτω	tiktó	τέκ-	tec-, tech-	to bear, to bring forth, to produce	architect, biotechnology, nanotechnology, polytechnic, pyrotechnic, technician, technetium, technical, technicality, technicolor, technique, technocrat, technology, technophile, technophobe, tectonic
τόνος < τείνω	tonos	τεν-, τoν-	ton-	stretch, extend, spread	atonal, dystonia, intonate, isotonic, monotone, semitone, tone, tune, undertone; hypotenuse; -tenic, -teny: neoteny
τοξικόν	toxikon	τοξικ-	toxik-	poison	toxic, toxicology, toxicosis toxin, toxoplasma
τόπος	topos	τοπ(ο)-	top(o)-	place	atopy, cacotopia, dystopia, ectopic, isotope, topiary, topic, topography, topology, toponym, utopia
τραγάκανθα	tragákantha			Astragalus shrub	tragacanth
τρεισκαίδεκα	treiskaídeka	τρεισκαίδεκα-	treiskaídeka-	thirteen	triskaidekaphobia
τρέπω	trepo	τρεπ-	trep-, trop-	to turn	allotrope, apotrope, atropos, entropy, geotropism, heliotrope, isotrope, phototrope, pleiotropy, psychotrope, subtropic, thigmotropism, thixotropy, trope, tropic, zoetrope
τρόπαιον	tropaion	τροπαι-	tropai-	monument of an enemy's defeat	trophy
τροπικός	tropikos	τροπικ-	tropik-	of the turning of the sun, tropical	tropicamide, tropics
τροφή	trophē	τροφικ-	trophik-	nourishment, food (genitive form)	amyotrophy, atrophy, auxotrophy, chemotroph, dystrophy, heterotrophy, psychotropic
τρώγω	trogo	τρώγ-	trog-, trag-	to gnaw (like a goat), munch, crunch	tragedy, tragophonia, tragus
τύμβος	tumbos	τυμβ-	tomb-	sepulchral mound, cairn, barrow	tomb, tombstone
τύπτω	tuptō	τυπ-	typ-	beat, strike, wound	type, typology, typography
τύραννος	tyrranos	τύραν-	tyran-	an absolute ruler	tyrannosaurus, tyrant
τύρος	turos	τυρο-	turo-, tyro-	cheese	turophile, tyroglyphus, tyrosine

Υ

(h)u, (h)y

Citation form		Root form		Meaning	English Derivative
ὕδνον	hudnon	ὕδνο-	hydno-	truffle	hydnocarpus
ὕδωρ	hudōr	ὑδρο-	hydro-	water	achlorhydria, anhydrous, dehydration, hydrodynamics, hydrogen, hydrolysis, hydroponics, hydrophobic, hydrophilic
ὕδροψ	hudrops	ὕδροπ-	hydrop-	dropsy	dropsy
ὑγιεινή	hugieinē	ὑγιειν-	hygiein-	soundness, health	hygiene
ὑγρός	hugros	ὑγρ/ὑγρο-	hygr/hygro-	moist	hygrine, hygrometer, hygroscopy
ὕλη	hulē	ὕλη/ὕλ-	hylē/hul-	wood, forest	hyla, hyle, hylodes, hylozoism
ὑμήν	humēn	ὕμεν-	hymen-	thin skin, membrane, caul	hymen, hymenoptera
ὕμνος	humnos	ὕμν-	hymn-	hymn, ode	hymn, hymnody, hymnography
ὕπέρ	huper	ὑπέρ-	hyper-	super-, pro-, trans-, over-	hyperactive, hyperbaton, hyperbaric, hyperbole, hyperborean, hypercritical, hyperdrive, hyperextend, hyperglycemia, hyperinflation, hyperkinetic, hyperlink, hyperopia, hyperplasia, hypersensitivity, hyperspace, hypertasis, hypertension, hypertext, hyperthyroid, hypertonic, hypertrophy, hyperventilate
ὕπνος	hupnos	ὑπνο-	hypno-	sleep	hypnopedia, hypnopompic, hypnotherapy, hypnotism, hypnotic, narcohypnosis
ὕπο	hupo	ὕπ(ο)-	hyp(o)-	sub-, under	hypoallergenic, hypoblast, hypochlorite, hypochondria, hypodermic, hypocrisy, hypodermic, hypoglycemia, hypomania, hypotenuse, hypothalamus, hypothecate, hypothesis, hypothermia, hypotonic, hypoxia
ὑστέρα	hystéra	ὑστέρ-	hystér- (2nd syllable accent)	womb	hysterectomy, hysteria
ὕστερος	husteros	ὕστερο-	hyster- (1st syllable accent)	later, latter, last	hysteresis, hysteron proteron

Φ

p(h)

Citation form		Root form		Meaning	English derivatives
φάγω	phagō	φαγ-	phag-	I eat	anthropophagy, bacteriophage, entomophagous, esophagus, geophagy, hippophagy, macrophage, omophagous, phagocyte, phyllophagous, polyphagia, rhizophagous, sarcophagus, xerophagy, xylophagous, zoophagous
φαίνω	phainō	φαιν-	phan-, fan-	shine, be seen	cellophane, epiphany, fantastic, fantasy, hierophany, phantasm, phantom, phenomenon, sycophant, theophany, tryptophan
φέρω	pherō	φερ-	pher-	bear, bring	amphora, anaphora, Christopher, chromatophore, euphoria, metaphor, oophorectomy, paraphernalia, periphery, pheromone, phoresy, phosphorus, pyrophoric, semaphore
φημί	phémi	φημ-	phem-	say, declare	aphasia, blasphemy, dysphemism, euphemism, heterophemy, phatic, prophet
ϕιάλη	phiálē			a shallow drinking vessel, phiale	phial
φιλία/φίλος	philia/philos	-φιλια/φιλο-	-philia/philo-	friend, friendship	pedophilia, Philadelphia, philanthropy, philosophy, zoophilia
φέβομαι	phebomai	φέβο-	phob-	to be put to flight, flee in terror	acrophobia, agoraphobia, ailurophobia, androphobia, arachnophobia, autophobia, chaetophobia, claustrophobia, coulrophobia, ergophobia, hemophobia, homophobia, hydrophobia, necrophobia, negrophobia, nyctophobia, ophidiophobia, philophobia, phobophobia, phobia, Phobos, phonophobia, photophobia, psychrophobia, pyrophobia, satanophobia, sciophobia, sinophobia, sitophobia, symmetrophobia, technophobia, triskaidekaphobia, xenophobia, zoophobia
ϕοῖνιξ	phoinix			dark red, phoenix (mythical bird)	phoenix, Phoenecia
φωνή	phōnē	φωνη-	phōn-	voice	antiphon, aphonia, cacophony, cellphone, diaphone, dictaphone, earphone, euphony, gramaphone, homophone, megaphone, microphone, monophonic, phonathon, phone, phoneme, phonetic, phonograph, phonology, picturephone, polyphone, symphony, telephone, vibraphone, xylophone
φραζό	phrazo	φραζ-	phras-	to indicate plainly, to explain	antiphrasis, holophrastic, metaphrastic, paraphrase, periphrastic, phrase, phraseology, rephrase
φρήν	phrēn	φρεν-	phren-	heart, mind	frantic, paraphrenia, phrenitis, phrenology, schizophrenia
φυλακή	phulaké	φυλακ-	phulak-	watch, guard, ward	anaphylactic, phylactery, prophylactic
φύλλον	phullon	φύλλο-	phullo-	leaf	chlorophyll, phyllotaxis
φύω	phyo	φυ-	phy-	to bring forth, beget or produce naturally	apophysis, apophysomyces, astrophysics, geophysics, monophysite, physical, physician, physics, physiognomy, physiotherapy, physocarpus, psychophysics, psychophysiology, zygapophysis
φυτόν	phuton	φυτο-	phuto-	plant	archaeophyte, autophyte, bryophyte, dermatophyte, embryophyte, endophyte, entophyte, epiphyte, epiphytic, exophytic, gametophyte, geophyte, gnetophyte, hematophyte, hemiepiphyte, hydrophyte, macrophyte, microphyte, neophyte, oophyte, periphyton, phytic acid, phytochemical, phytogeography, phytology, phytomer, phytopathology, phytoplankton, phytotomy, saprophyte, schizophyte, spermatophyte, sporophyte, thallophyte, zoophyte
φῶς	phōs	φωσ-/φα-/φωσ-/φωτ-	pha-/phōs-/phōt-	light	aphotic, euphotic, phosphor, phosphorus, photic, photochromism, photograph, photography, photogenic, photon, photoperiod, photophone, photophore

Χ

k(h), c(h)

Citation form		Root form		Meaning	English derivatives
χαίτη	khaitē	χαιτη-	khaitē-	loose flowing hair, mane,	chaetophobia, polychaete
χαλκός	chalkos	χαλκo-	chalco-	copper, brass, money	chalcocite, chalcography, chalcolithic, chalcopyrite, chalcosis
χαμαιλέων	khamailéōn			chameleon	chameleon
χάσκω	chaskó	χάσ-	khas-	yawning, hollow, to stand agape with mouth wide open	achene, chasm, chasmogamy
χάος	khaos	χαοσ-	khaos-	primal emptiness	chaos, gas
χαράσσω	kharássō	χαρ-	char-, car-	to scratch or inscribe	card, cartogram, cartography, cartomancy, carton, cartoon, cartouche, cartridge, character, characteristic, characterology, chart
χάρις	charis	χάρις-	charis-	grace, favor, kindness	charisma, eucharist
χεῖλος	cheilos	χεῖλ-	cheil-	a lip, mouth, shore	cheiloplasty, cheilophagia
χείρ	kheir	χειρ-	kheir-	hand	chiral, chirograph, chiromancy, Chironomidae, chironomy, chiropodist, Chiroptera, chiropractor, enchiridion
χερουβ	cheroub	χερουβ-	cherub-	cherub	cherub, cherubic, cherubim
χημία , χημεία , χυμεία	khēmía		(via Arabic al-kīmiyā' alchemy)	alchemy, chemist, chemistry
χίλιοι	chilioi	χίλ-	kil-	a thousand	kilobase, kilobyte, kilolitre, kilogram, kilojoule, kilometer, kilowatt
χιών	khiōn	χιον-	khion-	snow	chionanthus, chionablepsia, chiolite, chionodoxa, chionophobia
χολή	kholē	χολ-	chol-	bile	cholera, melancholia
χορεία	khoreia	χορει-	chorei-	dance	choreography
χορός	khoros	χορο-	choro-	dance	choir, chorale, chorus
χρηστομάθεια	khrēstomatheia			useful for learning	chrestomathy
χρίω	khriō	χρι-	khri-	anoint	chrism, chrismation, chrismarium, Christ, Christmas
χρῶμα	khrōma	χρωματ-	khromat-	colour	achromatic, apochromatic, chromate, chromaticism, chrome, chromosome, chromatophore, heliochrome, monochrome, photochromism
χρόνος	khronos	χρον-	khron-	time	anachronism, asynchronous, chronic, chronicle, chronology, chronomancy, chronometer, diachronic, isochronous, synchronous
χρυσός	khrusos	χρυσ-	khrys-	gold	chrysalis, chrysanthemum, chrysene, chrysoberyl, chrysocolla

Ψ

ps

Citation form		Root form		Meaning	English derivatives
ψάλλω	psallō	ψάλ-	psal-	to play, twang	psalmodicon, psalm, psalter, psaltery
ψάμμος	psammos	ψαμμο-	psammo-	sand	psammoma, Psammophis
ψῆφος	psēphos	ψηφ(ο)-	pseph(o)-	pebble	isopsephy, psephite, psephology, psephomancy
ψεῦδος	pseudos	ψευδο/ψευδ-	pseud(o)-	false, a falsity	pseudechis, pseudepigrapha, pseudobranch, pseudonym, pseudopod, pseudoscience, pseudomorph, pseudotachylite, pseudoephedrine
ψηλαφάω	psēlaphaō	ψηλαφ-	pselaph-	to grope about	pselaphinae
ψιθός	psithos	ψιθ-	psith-	whisper	psithurism
ψιλός	psilos	ψιλο-	psilo-	mere, bare, smooth	psilanthropism, psilocybin, psilomelane, psilotopsida
ψίξ	psix	ψίξ-	psikh-	bit, crumb	psikharpax
ψόα	psoa	ψοα-	psoa-	muscles of the loin	psoas
ψυχή	psukhē	ψυχ-	psych-	spirit, soul	neuropsychology, psionics, psychasthenia, psyche, psychedelic, psychiatry, psychic, psychoacoustics, psychoanalysis, psychobabble, psychodrama, psychogenesis, psychographic, psychohistory, psychokinesis, psycholinguistics, psychology, psychometrics, psychometry, psychoneuroendocrinology, psychoneuroimmunology, psychopathy, psychopharmacology, psychophysics, psychophysiology, psychosis, psychosomatic, psychosurgery, psychotherapy, psychotropic
ψύλλα	psylla	ψυλλ-	psyll-	flea	psylla
ψυχρός	psuchros	ψυχρο-	psychro-	cold	psychrolutidae, psychrometer, psychrometrics, psychrophile
ψώρα	psora	ψωρ-	psor-	itch, scab	psoriasis

Ω

(h)ō

Citation form		Root form		Meaning	English Derivative
ὠδίν	ódin	ὠδίν-	odin-	pain of childbirth, severe agony	odinagogue, odinopoeia
ὠμέγα	omega	ὠμεγα	omega	large o, last letter of Greek alphabet	omega
ὦμος	ómos	ὦμο-	omo-	the shoulder	omitis, omodynia, omohyoid muscle
ὤνος	onos	ὤν-	on-	price, purchase	oniochalasia, oniomania, oniomaniac
ᾠόν	ōon	ᾠο-	ōo-	egg	oocyte, oogenesis, oology, oomycete, oogonia, oolite, oophorectomy
ὥρα	hōra	ὡρ-	hōr-	season, hour	horology, horometry, horoscope
ὠψ	ops	ὠψ-	ops-	eye, countenance	aethalops, autopsy, biopsy, cyclops, necropsy, synopsis

See also

• Classical compound
• English words of Greek origin
• Etymologicum Magnum
• Greek language
• Hybrid word
• List of Latin and Greek words commonly used in systematic names
• List of Greek and Latin roots in English
• List of Latin words with English derivatives
• Transliteration of Greek into English

External links

• English-French-modern Greek vocabulary – Words of Greek origin
• The Perseus Project has many useful pages for the study of classical languages and literatures, including dictionaries
• PhobiaList.com – List of many hundreds of -phobias, of Greek origin
• A Dictionary of Latin and Greek Words used in Modern English Vocabulary – List of suffixes/prefixes from Greek and Latin