Carpatho-Ukraine (Karpatska Ukraina). The name of the autonomous Carpatho-Ukrainian state within Czechoslovakia in 1938–39. This name as well as the earlier name Subcarpathian Ruthenia (Pidkarpatska Rus’) was in official use. It was the name adopted by constitutional law no. 1 of the Diet of Carpatho-Ukraine on 15 March 1939 for the Carpatho-Ukrainian republic. The name was used unofficially before 1938 to designate Transcarpathia.
Encyclopedia of Ukraine