Where does “lepikkorousku” come from?

lepikkorousku (Finnish) comes from Finnish lepikko, from Finnish -ikko, from Proto-Finnic -ikko, from Proto-Finnic -i- — Plural number marker in other cases than the nominative (and optionally the genitive).

lepikkorousku (Finnish): A milk-cap, "Lactarius obscuratus"

Definitions

  1. A milk-cap, "Lactarius obscuratus"

Ancestry of “lepikkorousku”, step by step

lepikkorousku traces back through two separate lines of ancestry.

via Finnish lepikko

StepLanguageWordMeaning
1FinnishlepikkoAn alder forest; A concentration of alder, as...
2Finnish-ikkoForms nouns for groups of a particular number,...
3Proto-Finnic-ikkoForms nouns indicating a group of things
4Proto-Finnic-i-Plural number marker in other cases than the nominative (and optionally the genitive)

via Finnish rousku

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