Where does “Аарон” come from?

Аарон (Russian) comes from Old East Slavic Ааро́нъ, from Old Church Slavonic Аарѡ́нъ, from Ancient Greek Ἀαρών, from Hebrew אַהֲרֹן.

Ancestry of “Аарон”, step by step

Step	Language	Word	Meaning
1	Old East Slavic	Ааро́нъ	—
2	Old Church Slavonic	Аарѡ́нъ	—
3	Ancient Greek	Ἀαρών	—
4	Hebrew	אַהֲרֹן	—

Аарон — Etymology, Origin & Word History | Etymology Explorer