Where does “kolmaspäivä” come from?

kolmaspäivä (Ingrian) comes from Ingrian päivä, from Proto-Finnic päivä, from Proto-Uralic päjwä, from Proto-Uralic päje.

Ancestry of “kolmaspäivä”, step by step

kolmaspäivä traces back through two separate lines of ancestry.

via Ingrian päivä

StepLanguageWordMeaning
1IngrianpäiväA day; An afternoon
2Proto-Finnicpäiväsun; day
3Proto-Uralicpäjwä? warmth; ? sun; ? fire
4Proto-Uralicpäje—

via Ingrian kolmas

StepLanguageWordMeaning
1Ingriankolmasthird
2Proto-Finnickolmancithird
3Proto-Finno-Permickolmamte—
Every word from Proto-Uralic päje →Every word from Proto-Uralic päjwä →Every word from Proto-Finnic päivä →