Where does “*rūmo” come from?

*rūmo (Old Saxon) comes from Proto-West Germanic rūm, from Proto-Germanic rūmaz, from Proto-Indo-European rewh₁- — free space.

Ancestry of “*rūmo”, step by step

StepLanguageWordMeaning
1Proto-West Germanicrūmroomy, spacious; room, open space
2Proto-Germanicrūmazroomy, spacious, open
3Proto-Indo-Europeanrewh₁-free space

Words derived from “*rūmo

Every word from Proto-Indo-European rewh₁-Every word from Proto-Germanic rūmazEvery word from Proto-West Germanic rūm