Where does “revonrousku” come from?

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

revonrousku (Finnish): A milk-cap, "Lactarius fulvissimus"

Definitions

  1. A milk-cap, "Lactarius fulvissimus"

Ancestry of “revonrousku”, step by step

revonrousku 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 Repo

StepLanguageWordMeaning
1FinnishRepofox, Vulpes vulpes
2Proto-Finnicrepoifox
3Proto-Finno-Ugricrepä—
Every word from Proto-Finnic -u →Every word from Finnish -u →Every word from Finnish rousku →