Where does “necrosis” come from?

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

Ancestry of “necrosis”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	νέκρωσις	a state of death, deadness; death; mortification
2	Ancient Greek	-σῐς	"suffix forming nouns"
3	Ancient Greek	-τις	retained after dentals
4	Proto-Indo-European	-tis	Derives abstract/action nouns from verb roots

Words derived from “necrosis”

necrosi
necrosis
osteonecrosi
osteoradionecrosi
radionecrosi

Every word from Proto-Indo-European -tis →Every word from Ancient Greek -σῐς →Every word from Ancient Greek νέκρωσις →