> SLAVE: From Middle English, from Old French sclave, from Medieval Latin sclāvus (“slave”), from Late Latin Sclāvus (“Slav”), because Slavs were often forced into slavery in the Middle Ages.[1][2][3][4][5] The Latin word is from Byzantine Greek Σκλάβος (Sklábos), see that entry and Slav for more.

> ROBOT: Borrowed from Czech robot, from robota (“drudgery, servitude”). Coined in the 1921 science-fiction play R.U.R. (Rossum's Universal Robots) by Karel Čapek after having been suggested to him by his brother Josef, and taken into English without change.

[1]: https://en.wiktionary.org/wiki/slave#Etymology [2]: https://en.wiktionary.org/wiki/robot#Etymology