[pfannkuchen]

I believe the claim is that the word “slave” is derived from the word “slav”, not the other way around.

[ambyra]

Yeah. In Polish Slav means a speaker, or person of our word. In Latin, it meant person who we can take to do work for free, but the Polish came up with the term first.

Our old word for foreigner is the same as non speaker or mute, Niemcy, which now specifically refers to the Germans. I guess they were our first foreigners.