Where does “Моисей” come from?

Моисей (Russian) comes from Ancient Greek Μωϋσῆς, from Ancient Greek Μωυσῆς, from Hebrew מֹשֶׁה — Moses.

Ancestry of “Моисей”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Μωϋσῆς	—
2	Ancient Greek	Μωυσῆς	—
3	Hebrew	מֹשֶׁה	Moses