Where does “кос” come from?
кос (Rusyn) comes from Proto-Slavic kosъ, from Proto-Slavic kopsъ.
кос (Rusyn): Eurasian blackbird
Ancestry of “кос”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Slavic | kosъ | blackbird; skew, slanted |
| 2 | Proto-Slavic | kopsъ | — |