Where does “päivystäminen” come from?

päivystäminen (Finnish) comes from Finnish päivystää, from Finnish päivä, from Proto-Finnic päivä, from Proto-Uralic päjwä, from Proto-Uralic päje.

Ancestry of “päivystäminen”, step by step

StepLanguageWordMeaning
1FinnishpäivystääTo be on call
2Finnishpäiväday; the sun
3Proto-Finnicpäiväsun; day
4Proto-Uralicpäjwä? warmth; ? sun; ? fire
5Proto-Uralicpäje—
Every word from Proto-Uralic päje →Every word from Proto-Uralic päjwä →Every word from Proto-Finnic päivä →