Where does “kasvojenpesu” come from?

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

kasvojenpesu (Finnish): face washing, washing one's face

Definitions

  1. face washing, washing one's face

Ancestry of “kasvojenpesu”, step by step

kasvojenpesu 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 kasvot

StepLanguageWordMeaning
1Finnishkasvotface
Every word from Proto-Finnic -u →Every word from Finnish -u →Every word from Finnish pesu →