Where does “Mosgo” come from?

Mosgo (Welsh) comes from English Moscow, from Old East Slavic Москва, from Proto-Slavic mosky.

Ancestry of “Mosgo”, step by step

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