Where does “aivopesu” come from?

aivopesu (Finnish) comes from Finnish pesu, from Finnish -u, from Proto-Finnic -u — Forms nouns from adjectives, nouns.

aivopesu (Finnish): brainwash

Definitions

  1. brainwash

Ancestry of “aivopesu”, step by step

aivopesu traces back through two separate lines of ancestry.

via Finnish pesu

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

via Finnish aivot

StepLanguageWordMeaning
1Finnishaivotbrain
2Proto-Finnicaivobrain
3Proto-Uralicajŋebrain
Every word from Proto-Finnic -u →Every word from Finnish -u →Every word from Finnish pesu →