Type Word Usage Old Slavic (Hypothetical) Scripts крꙋпа(Church Slavic) Meaning & History Slavic word meaning "grain, groats" [1][2]. Related ItemsFamily Tree·Details Surname DescendantsKrupa(Polish) Krupin, Krupina(Russian) Sources & References Derksen, Rick. Etymological Dictionary of the Slavic Inherited Lexicon. Brill, 2008, page 252. Trubachyov, Oleg. Etimologicheskiy Slovar Slavyanskikh Yazykov (vol. 13). Moscow, 1974-, page 43.