Where does “voirousku” come from?

voirousku (Finnish) comes from Finnish rousku, from Finnish -u, from Proto-Finnic -u — Forms nouns from adjectives, nouns.

voirousku (Finnish): A milk-cap, "Lactarius scrobiculatus"

Definitions

  1. A milk-cap, "Lactarius scrobiculatus"

Ancestry of “voirousku”, step by step

voirousku traces back through two separate lines of ancestry.

via Finnish rousku

StepLanguageWordMeaning
1FinnishrouskuA milk-cap
2Finnish-uForms nouns from verbs. Most common with "e"- and...
3Proto-Finnic-uForms nouns from adjectives, nouns

via Finnish voi

StepLanguageWordMeaning
1Finnishvoibutter; oh; third-person singular indicative...
2Proto-Finnicvoibutter; oh, woe
3Proto-Finno-Ugricwajefat

Words derived from “voirousku

Every word from Proto-Finnic -uEvery word from Finnish -uEvery word from Finnish rousku