Where does “Iolao” come from?

Iolao (Italian) comes from Ancient Greek Ἰόλαος, from Ancient Greek ϝιόλᾱος.

Ancestry of “Iolao”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ἰόλαος	—
2	Ancient Greek	ϝιόλᾱος	—