Where does “derroi” come from?

derroi (Old French) comes from Old French roi, from Latin rēx, from Proto-Italic rēks, from Proto-Indo-European h₃rḗǵs, from Proto-Indo-European h₃reǵ- — to straighten, to right oneself; right; just.

Ancestry of “derroi”, step by step

StepLanguageWordMeaning
1Old Frenchroiking
2Latinrēxking, ruler
3Proto-Italicrēksking
4Proto-Indo-Europeanh₃rḗǵsking, ruler
5Proto-Indo-Europeanh₃reǵ-to straighten, to right oneself; right; just

Words derived from “derroi”

Every word from Proto-Indo-European h₃reǵ- →Every word from Proto-Indo-European h₃rḗǵs →Every word from Proto-Italic rēks →