rúm

Derived from Old English rūm (liberal, extensive, open, lax, loose, space, large, unoccupied, great, free from conditions, room, spacious, unencumbered, free from occupation, unrestricted, clear, noble, roomy, long, extended, not restrained within due limits, abundant, august, temporal, unfettered, ample, far-reaching) derived from Old Norse rúm derived from Proto-Germanic *rūmą (room, open space).

Proto-Germanic