Where does “keinuveitsi” come from?

keinuveitsi (Finnish) comes from Finnish keinu, from Finnish -u, from Proto-Finnic -u — Forms nouns from adjectives, nouns.

keinuveitsi (Finnish): mezzaluna

Definitions

  1. mezzaluna

Ancestry of “keinuveitsi”, step by step

keinuveitsi traces back through two separate lines of ancestry.

via Finnish keinu

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

via Finnish veitsi

StepLanguageWordMeaning
1Finnishveitsiknife
2Proto-Finnicveicciknife
3Proto-Finno-Ugricwäŋćɜ—
Every word from Proto-Finnic -u →Every word from Finnish -u →Every word from Finnish keinu →