Where does “εναλλάξ” come from?

εναλλάξ (Greek) comes from Ancient Greek ἐναλλάξ.

εναλλάξ (Greek): alternately, by turns

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	ἐναλλάξ	—

εναλλάξ — Etymology, Origin & Word History | Etymology Explorer