Traditional Eastern European beverage made from fermented bread, which has a very low alcohol content.
1We have kvas, beer, vodka and all the home-made cordials, stammered the groom.
2Setting a cup on the table, she poured out some kvas.
3Did I not tell you bread and kvas and then we'll have soup.
4Is the supper kvas ready, Dikanka?
5"No, sober, for he is taking nothing but kvas and cabbage soup."