Where does “avajaispäivä” come from?

avajaispäivä (Finnish) comes from Finnish avajaiset, from Finnish -iäinen, from Finnish -inen, from Finnish -uus, from Proto-Finnic -uc — -ness, -hood.

avajaispäivä (Finnish): opening day

Definitions

  1. opening day

Ancestry of “avajaispäivä”, step by step

avajaispäivä traces back through two separate lines of ancestry.

via Finnish avajaiset

StepLanguageWordMeaning
1Finnishavajaisetopening, opening ceremony
2Finnish-iäinenFront vowel variant of -iainen
3Finnish-inen-like, -ous, -y; -en; Creates adjectives from...
4Finnish-uusForms nouns from adjectives, expressing a quality
5Proto-Finnic-uc-ness, -hood

via Finnish päivä

StepLanguageWordMeaning
1Finnishpäiväday; the sun
2Proto-Finnicpäiväsun; day
3Proto-Uralicpäjwä? warmth; ? sun; ? fire
4Proto-Uralicpäje—
Every word from Proto-Finnic -uc →Every word from Finnish -inen →Every word from Finnish -uus →