Where does “Sclavism” come from?
Sclavism (English) comes from Romanian sclav, from Medieval Latin sclavus, from Ancient Greek Σκλάβος, from Ancient Greek Σκλαβηνός, from Proto-Slavic slověninъ, from Proto-Slavic slovo, from Proto-Balto-Slavic ślawas, from Proto-Indo-European ḱléwos — to cover; to incline.
Sclavism (English): Archaic form of Slavism
Ancestry of “Sclavism”, step by step