Where does “koillisosa” come from?

koillisosa (Finnish) comes from Finnish koillinen, from Finnish koi, from Japanese 鯉, from Old Japanese こい.

koillisosa (Finnish): northeastern part

Definitions

  1. northeastern part

Ancestry of “koillisosa”, step by step

koillisosa traces back through two separate lines of ancestry.

via Finnish koillinen

StepLanguageWordMeaning
1Finnishkoillinennortheast; northeastern
2Finnishkoishort form of vaatekoi Tineola bisselliella,...
3Japanese鯉carp, specifically, the common carp
4Old Japaneseこい—

via Finnish osa

StepLanguageWordMeaning
1Finnishosapart; piece; proportion, section
2Proto-Finnicosapart
3Proto-Uraliconćapart, share (of meat?)
Every word from Old Japanese こい →Every word from Japanese 鯉 →Every word from Finnish koi →
koillisosa — Etymology, Origin & Word History | Etymology Explorer