Where does “Μόσχα” come from?

Μόσχα (Greek) comes from Russian Москва́, from Old East Slavic Москꙑ, from Proto-Slavic mosky.

Ancestry of “Μόσχα”, step by step

StepLanguageWordMeaning
1RussianМосква́Moscow
2Old East SlavicМоскꙑ—
3Proto-Slavicmosky—
Every word from Proto-Slavic mosky →Every word from Old East Slavic Москꙑ →Every word from Russian Москва́ →