- Member of a people living in the eastern Carpathian Mountains, in part of western Ukraine, south-eastern Poland and north-eastern Slovakia.
- (archaic) ethnonym for East Slavic people - any of Belarusian, Russian, Ukrainian, an inhabitant of Kievan Rus, Muscovy, etc., an Orthodox, East Slavic inhabitant of Rzeczpospolita.
- East Slavic language (Ukrainian dialect) spoken by Rusyns.
(comparative more Rusyn, superlative most Rusyn)
- Of or pertaining to the Rusyn people, culture, or language.
From Rusyn русин (rúsyn), from Old East Slavic Русь (Rus’, “Rus”). Compare Ruthenia.