From Russian ква́с (kvás, “kvass”), from Old East Slavic квасъ (kvasŭ), from Proto-Slavic *kvasъ.
kvassi
kvassi very closely resembles a traditional Finnish beverage called kalja or kotikalja, the main difference being that kvassi is made of bread whereas kalja is made of malt. The metonymic use of kalja for kvass is thus common.
| Inflection of kvassi (Kotus type 5/risti, no gradation) | |||
|---|---|---|---|
| nominative | kvassi | kvassit | |
| genitive | kvassin | kvassien | |
| partitive | kvassia | kvasseja | |
| illative | kvassiin | kvasseihin | |
| singular | plural | ||
| nominative | kvassi | kvassit | |
| accusative | nom. | kvassi | kvassit |
| gen. | kvassin | ||
| genitive | kvassin | kvassien | |
| partitive | kvassia | kvasseja | |
| inessive | kvassissa | kvasseissa | |
| elative | kvassista | kvasseista | |
| illative | kvassiin | kvasseihin | |
| adessive | kvassilla | kvasseilla | |
| ablative | kvassilta | kvasseilta | |
| allative | kvassille | kvasseille | |
| essive | kvassina | kvasseina | |
| translative | kvassiksi | kvasseiksi | |
| abessive | kvassitta | kvasseitta | |
| instructive | — | kvassein | |
| comitative | See the possessive forms below. | ||