Where does “Piave” come from?

Piave (Italian) comes from Latin Plavis, from Proto-Indo-European plew- — to fly, flow, run.

Ancestry of “Piave”, step by step

Step	Language	Word	Meaning
1	Latin	Plavis	—
2	Proto-Indo-European	plew-	to fly, flow, run

Piave — Etymology, Origin & Word History | Etymology Explorer