Where does “cnido-” come from?

cnido- (English) comes from Translingual Cnidaria, from Ancient Greek κνίδη, from Ancient Greek κνίζω, from Proto-Indo-European kneyd-, from Proto-Indo-European ken- — to arise, begin.

cnido- (English): Related to cnidarians or their stinging cells

Definitions

Related to cnidarians or their stinging cells

Ancestry of “cnido-”, step by step

Step	Language	Word	Meaning
1	Translingual	Cnidaria	Corals, hydra, jellyfish, etc
2	Ancient Greek	κνίδη	stinging nettle; sea anemone in the genus...
3	Ancient Greek	κνίζω	to scratch, gash; to pound, chop up or grate; to...
4	Proto-Indo-European	kneyd-	to scratch
5	Proto-Indo-European	ken-	to arise, begin

Words derived from “cnido-”

cnidoblast
cnidogenesis
cnidophore
cnidophorous
cnidoblastic

Every word from Proto-Indo-European ken- →Every word from Proto-Indo-European kneyd- →Every word from Ancient Greek κνίζω →