Comment by leonidasrup

Origin and history of English word slave

https://www.etymonline.com/word/slave

slave(n.)

c. 1300, sclave, esclave, "person who is the chattel or property of another," from Old French esclave (13c.) and directly from Medieval Latin Sclavus "slave" (source also of Italian schiavo, French esclave, Spanish esclavo), originally "Slav" (see Slav); so used in this secondary sense because of the many Slavs sold into slavery by conquering peoples.