Where does “pesusoikko” come from?

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

pesusoikko (Finnish): washtub

Definitions

  1. washtub

Ancestry of “pesusoikko”, step by step

pesusoikko 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 soikko

StepLanguageWordMeaning
1Finnishsoikkotub
2Finnishsoikeaoval, elliptical; elliptic
Every word from Proto-Finnic -u →Every word from Finnish -u →Every word from Finnish pesu →