In Hungary we've learn about robot "jobs" in school. I am no expert but in serfdoms the peasants, who owned fields, had to work on the field of the lords for free. [1] I could only found the hungarian wiki page: https://hu.wikipedia.org/wiki/Igás_robot We have used the exact word "robot" in hungarian.

[1]: https://en.wikipedia.org/wiki/Serfdom