Where does “psōriasis” come from?

psōriasis (Late Latin) comes from Ancient Greek ψωρίασις, from Ancient Greek -σῐς, from Ancient Greek -τις, from Proto-Indo-European -tis — Derives abstract/action nouns from verb roots.

Ancestry of “psōriasis”, step by step

StepLanguageWordMeaning
1Ancient Greekψωρίασιςitch; scabies; mange
2Ancient Greek-σῐς"suffix forming nouns"
3Ancient Greek-τιςretained after dentals
4Proto-Indo-European-tisDerives abstract/action nouns from verb roots

Words derived from “psōriasis

Every word from Proto-Indo-European -tisEvery word from Ancient Greek -σῐςEvery word from Ancient Greek -τις