Where does “sivuluu” come from?

sivuluu (Ingrian) comes from Ingrian luu, from Proto-Finno-Ugric *luu.

Ancestry of “sivuluu”, step by step

StepLanguageWordMeaning
1Ingrianluubone
2Proto-Finno-Ugric*luu—
Every word from Proto-Finno-Ugric *luu →Every word from Ingrian luu →