Where does “kas” come from?
kas (Latvian) comes from Proto-Balto-Slavic kas, from Proto-Indo-European kʷós — who.
kas (Latvian): who, what; API '; that
Ancestry of “kas”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Balto-Slavic | kas | who |
| 2 | Proto-Indo-European | kʷós | who |