Where does “ύδωρ” come from?

ύδωρ (Greek) comes from Ancient Greek ὕδωρ, from Proto-Hellenic *údōr.

ύδωρ (Greek): water

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	ὕδωρ	water; rainwater, rain; sweat
2	Proto-Hellenic	*údōr	—

ύδωρ — Etymology, Origin & Word History | Etymology Explorer