Where does “anguille” come from?

anguille (Italian) comes from Italian anguilla, from Latin anguilla, from Proto-Italic *anɣʷis, from Proto-Indo-European h₂éngʷʰis — snake.

anguille (Italian): plural of anguilla

Definitions

Step	Language	Word	Meaning
1	Italian	anguilla	eel
2	Latin	anguilla	eel; small snake; vocative singular of anguilla
3	Proto-Italic	*anɣʷis	—
4	Proto-Indo-European	h₂éngʷʰis	snake

anguille — Etymology, Origin & Word History | Etymology Explorer