Where does “anguineous” come from?

anguineous (English) comes from Latin anguineus, from Latin anguis, from Proto-Italic *anɣʷis, from Proto-Indo-European h₂éngʷʰis — snake.

anguineous (English): Like a snake

Definitions

Step	Language	Word	Meaning
1	Latin	anguineus	—
2	Latin	anguis	snake, serpent, dragon
3	Proto-Italic	*anɣʷis	—
4	Proto-Indo-European	h₂éngʷʰis	snake

anguineous — Etymology, Origin & Word History | Etymology Explorer