Where does “kvas” come from?
kvas (Slovak) comes from Proto-Slavic kvasъ, from Proto-Indo-European kwh₂et- — to ferment, become sour; to boil, foam.
kvas (Slovak): kvass
Ancestry of “kvas”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Proto-Slavic | kvasъ | leaven, fermented drink |
| 2 | Proto-Indo-European | kwh₂et- | to ferment, become sour; to boil, foam |