Where does “osu” come from?

osu (Finnish) comes from Finnish osua, from Finnish -ua, from Proto-Finnic -üdäk — Forms mainly passive or anticausative verbs.

osu (Finnish): Indicative present connegative form of osua;...

Definitions

  1. Indicative present connegative form of osua;...

Ancestry of “osu”, step by step

StepLanguageWordMeaning
1FinnishosuaTo hit, strike, get
2Finnish-uaForms stative or inchoative intransitive verbs...
3Proto-Finnic-üdäkForms mainly passive or anticausative verbs
Every word from Proto-Finnic -üdäk →Every word from Finnish -ua →Every word from Finnish osua →