Type Word Usage Old Slavic (Hypothetical) Scripts бꙑстръ(Church Slavic) Meaning & History Slavic word meaning "quick, clear" [1][2]. Related ItemsDetails Given Name DescendantsBistra(Bulgarian) Bistra(Macedonian) Sources & References Derksen, Rick. Etymological Dictionary of the Slavic Inherited Lexicon. Brill, 2008, page 71. Trubachyov, Oleg. Etimologicheskiy Slovar Slavyanskikh Yazykov (vol. 3). Moscow, 1974-, page 153.