Where does “haarukkarousku” come from?

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

haarukkarousku (Finnish): A milk-cap, Lactarius insulsus

Definitions

  1. A milk-cap, Lactarius insulsus

Ancestry of “haarukkarousku”, step by step

haarukkarousku 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 haarukka

StepLanguageWordMeaning
1Finnishhaarukkafork; range, bracket; Short for etuhaarukka
2Finnishhaarabranch; fork, bifurcation; offshoot
3Proto-Finnichaarabranch
Every word from Proto-Finnic -u →Every word from Finnish -u →Every word from Finnish rousku →