Where does “ūdus” come from?

ūdus (Latin) comes from Latin uvidus, from Latin uveo, from Proto-Indo-European wegʷ- — wet, moist.

Ancestry of “ūdus”, step by step

Step	Language	Word	Meaning
1	Latin	uvidus	moist, wet, damp, humid, dank; drunken; vapid
2	Latin	uveo	—
3	Proto-Indo-European	wegʷ-	wet, moist

ūdus — Etymology, Origin & Word History | Etymology Explorer