From Infogalactic: the planetary knowledge core
The semblative case is a grammatical case that denotes the similarity of one entity to another.
- gahan mamin dup-pa ga-yu jilimakkun-yiga
- that white man sit-ASP 3sg-be woman-SEMBL
- That white man sits like a woman
- Texas Man Catches Fish With Human-Like Teeth 
However, as in many other languages, semblativity in English is marked with derivational affixes instead of being an inflectional case.