Where does “Deianira” come from?

Deianira (Italian) comes from Latin Deianira, from Ancient Greek Δῃᾰ́νειρα.

Ancestry of “Deianira”, step by step

Step	Language	Word	Meaning
1	Latin	Deianira	—
2	Ancient Greek	Δῃᾰ́νειρα	—

Deianira — Etymology, Origin & Word History | Etymology Explorer