Where does “Savio” come from?

Savio (Italian) comes from Old Occitan savi, from Vulgar Latin *sapium, from Latin sapĭdus, from Latin -idus, from Proto-Italic *-iðos.

Ancestry of “Savio”, step by step

Step	Language	Word	Meaning
1	Old Occitan	savi	—
2	Vulgar Latin	*sapium	—
3	Latin	sapĭdus	—
4	Latin	-idus	tending to
5	Proto-Italic	*-iðos	—