Where does “Iole” come from?

Iole (Italian) comes from Ancient Greek Ἰόλη, from Ancient Greek Ϝιόλᾱ.

Ancestry of “Iole”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ἰόλη	—
2	Ancient Greek	Ϝιόλᾱ	—