квас

From Old East Slavic квасъ (kvasŭ), from Proto-Slavic *kvasъ (“leaven, fermented drink”).

• IPA^(key): [kvas]

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квас • (kvas) m inan (genitive ква́са, nominative plural квасы́, genitive plural квасо́в)

1. kvass (a type of traditional fermented Russian no- or low-alcohol beverage, made from bread, often flavored with fruit)

• ква́сить (kvásitʹ), заква́сить (zakvásitʹ)

• ки́слый (kíslyj)

• Vasmer, Max (1964–1973), “квас”, in Etimologičeskij slovarʹ russkovo jazyka [Etymological Dictionary of the Russian Language] (in Russian), translated from German and supplemented by Trubačóv O. N., Moscow: Progress
• Černyx, P. Ja. (1999), “квас”, in Istoriko-etimologičeskij slovarʹ russkovo jazyka [Historical-Etymological Dictionary of the Russian Language] (in Russian), volume 1, 3rd reprint edition, Moscow: Russkij jazyk, page 391

• IPA^(key): /kʋâːs/

ква̑с m (Latin spelling kvȃs)

1. (archaic) Alternative form of ква́сац (“yeast”)

Borrowed from Russian квас (kvas).

• IPA^(key): /kʋâːs/

ква̑с m (Latin spelling kvȃs)

1. kvass