The words, Robot and Arbeit (“labor”, in modern German) have the same etymological roots. Originally, arbeit was a term designating the activity of dependent laborers (slaves), or “speaking tools” ...
I have to be honest, I don’t really know what those words mean and I don’t know if anyone does because these terms are “reified.” The theory behind “reification” (the noun, “to reify” is the verb) ...