Type Element Usage Medieval Slavic Scripts мьсть(Church Slavic) Meaning & History Slavic element meaning "vengeance, revenge" [1]. Related ItemsFamily Tree·Details Given Name DescendantsMstislav(Czech) Mścisław(Polish) Mstislav(Russian) Sources & References Derksen, Rick. Etymological Dictionary of the Slavic Inherited Lexicon. Brill, 2008, page 343.