Where does “syänkuu” come from?

syänkuu (Ingrian) comes from Ingrian kuu, from Proto-Finnic kuu, from Proto-Uralic kuŋe — the Moon.

Ancestry of “syänkuu”, step by step

syänkuu traces back through two separate lines of ancestry.

via Ingrian kuu

StepLanguageWordMeaning
1Ingriankuumoon; month
2Proto-Finnickuumoon; month; fat, tallow
3Proto-Uralickuŋethe Moon

via Ingrian syän

StepLanguageWordMeaning
1Ingriansyänheart
2Proto-Finnicsüdänheart
3Proto-Uralicśüdämeheart
Every word from Proto-Uralic kuŋe →Every word from Proto-Finnic kuu →Every word from Ingrian kuu →