Where does “Αίαντας” come from?

Αίαντας (Greek) comes from Ancient Greek Αἴας, from Ancient Greek Αἴϝᾱς.

Ancestry of “Αίαντας”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Αἴας	Ajax
2	Ancient Greek	Αἴϝᾱς	—

Αίαντας — Etymology, Origin & Word History | Etymology Explorer