Where does “Robaia” come from?

Robaia (Romanian) comes from Romanian Robu, from Romanian rob, from Old East Slavic робъ, from Proto-Slavic orbъ, from Proto-Indo-European h₃órbʰos, from Proto-Indo-European h₃erbʰ- — to change allegiance, status, ownership;...

Ancestry of “Robaia”, step by step

StepLanguageWordMeaning
1RomanianRobu—
2Romanianrobslave
3Old East Slavicробъserf; slave
4Proto-Slavicorbъservant, slave
5Proto-Indo-Europeanh₃órbʰosorphan; servant, slave, worker
6Proto-Indo-Europeanh₃erbʰ-to change allegiance, status, ownership;...
Every word from Proto-Indo-European h₃erbʰ- →Every word from Proto-Indo-European h₃órbʰos →Every word from Proto-Slavic orbъ →