Where does “Emys” come from?

Emys (English) comes from Latin emys, from Ancient Greek ἐμύς, from Ancient Greek ἐμέω, from Ancient Greek ϝεμέω, from Proto-Indo-European *wémh₁ti, from Proto-Indo-European wemh₁- — to spew, to vomit.

Emys (English): Any member of the small Emys genus of freshwater pond tortoises

Definitions

Any member of the small Emys genus of freshwater pond tortoises

Ancestry of “Emys”, step by step

Step	Language	Word	Meaning
1	Latin	emys	freshwater tortoise, European pond turtle
2	Ancient Greek	ἐμύς	freshwater tortoise
3	Ancient Greek	ἐμέω	I vomit, throw up, am sick
4	Ancient Greek	ϝεμέω	—
5	Proto-Indo-European	*wémh₁ti	to vomit
6	Proto-Indo-European	wemh₁-	to spew, to vomit

Every word from Proto-Indo-European wemh₁- →Every word from Proto-Indo-European *wémh₁ti →Every word from Ancient Greek ϝεμέω →