Found 2 items, similar to kvass.
English → English (WordNet) Definition: kvass kvass n : fermented beverage resembling beer but made from rye or barley
English → English (gcide) Definition: kvass Quass \Quass\, n. [Russ. kvas'.] A thin, sour beer, made by pouring warm water on rye or barley meal and letting it ferment, -- much used by the Russians. Called also kvass. [written also quas.] [1913 Webster]