Where does “Araxes” come from?

Araxes (English) comes from Ancient Greek Ἀράξης, from Old Median Araxs(ā).

Ancestry of “Araxes”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ἀράξης	—
2	Old Median	Araxs(ā)	—

Araxes — Etymology, Origin & Word History | Etymology Explorer