Where does “मास्को” come from?

मास्को (Hindi) comes from English Moscow, from Old East Slavic Москва, from Proto-Slavic mosky.

Ancestry of “मास्को”, step by step

StepLanguageWordMeaning
1EnglishMoscowThe government of Russia or the Soviet Union
2Old East SlavicМосква
3Proto-Slavicmosky
Every word from Proto-Slavic moskyEvery word from Old East Slavic МоскваEvery word from English Moscow