Where does “mustapertti” come from?

mustapertti (Ingrian) comes from Ingrian pertti, from Old East Slavic пьрть, from Proto-Slavic pьrtь, from Proto-Balto-Slavic pirtis, from Proto-Indo-European pr̥tis, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “mustapertti”, step by step

mustapertti traces back through two separate lines of ancestry.

via Ingrian pertti

StepLanguageWordMeaning
1Ingrianperttihut, izba
2Old East Slavicпьртьbath-house
3Proto-Slavicpьrtьbathhouse; trail, corridor
4Proto-Balto-Slavicpirtisbathhouse
5Proto-Indo-Europeanpr̥tis—
6Proto-Indo-Europeanper-before, in front; first; to go through
7Proto-Indo-Europeanpr̥tóspassed , crossed

via Ingrian musta

StepLanguageWordMeaning
1Ingrianmustablack
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Indo-European pr̥tis →
mustapertti — Etymology, Origin & Word History | Etymology Explorer