Constructed languages introduced in the 19th century

Iazychie (; ) was an artificial literary East Slavic language used in the 19th century and the early 20th century in Halychyna, Bukovina, and Zakarpattia in publishing, particularly by Ukrainian and Carpatho-Rusyn Russophiles (Moskvophiles). It was an unsystematic combination of Russian with the lexical, phonetic and grammatical elements of vernacular Ukrainian and Rusyn, Church Slavonic, Ruthenian, Polish, and Old Slavic.