kvass

[ kvahs, kwahs ]

/ kvɑs, kwɑs /

a Russian beer made from fermenting rye or barley and having a dark color and sour taste.

Origin of kvass

First recorded in 1545–55, kvass is from the Russian word kvas

Another cure is Kvass, a slightly alcoholic beverage made by soaking dried rye bread with sugar and yeast.

The Wildest Hangover Cures From Around the World |Nina Strochlic |November 29, 2013 |DAILY BEAST
He made me sit down at his table, and gave me food, and the kvass he promised.

Fred Markham in Russia |W. H. G. Kingston
Bread, soup, boiled potatoes, and kvass were placed on the table.

The Forged Coupon and Other Stories |Leo Tolstoy
They served, too, a pie with onion and steamed turnip with kvass.

The Schoolmistress and Other Stories |Anton Chekhov

Meanwhile, he became a kvass merchant and exercised this trade for several months.

Contemporary Russian Novelists |Serge Persky
At first he wandered up and down selling beer and kvass—filling the cups of all who wished to drink.

Maxim Gorki |Hans Ostwald

kvass

/ (kvɑːs) /

an alcoholic drink of low strength made in Russia and E Europe from cereals and stale bread

C16: from Russian kvas; related to Old Slavic kvasĭ yeast, Latin cāseus cheese