Where does “Roem” come from?

Roem (Old French) comes from Latin Rotomagus, from Gaulish Ratumacos, from Gaulish magos, from Proto-Celtic magos, from Proto-Indo-European meǵh₂- — big, great; great; big, stour, great.

Ancestry of “Roem”, step by step

StepLanguageWordMeaning
1LatinRotomagusThe chief city of the Veliocasses in Gallia Lugdunensis, now Rouen
2GaulishRatumacos
3Gaulishmagosfield
4Proto-Celticmagosplain, field
5Proto-Indo-Europeanmeǵh₂-big, great; great; big, stour, great

Words derived from “Roem

Every word from Proto-Indo-European meǵh₂-Every word from Proto-Celtic magosEvery word from Gaulish magos
Roem — Etymology, Origin & Word History | Etymology Explorer