Where does “kos” come from?

kos (Polish) comes from Proto-Slavic kosъ, from Proto-Slavic kopsъ.

kos (Polish): common blackbird; genitive plural of kosa

Definitions

  1. common blackbird; genitive plural of kosa

Ancestry of “kos”, step by step

StepLanguageWordMeaning
1Proto-Slavickosъblackbird; skew, slanted
2Proto-Slavickopsъ
Every word from Proto-Slavic kopsъEvery word from Proto-Slavic kosъ