Where does “lunchroom” come from?

Lunchroom derives from English luncheon and English room, tracing through Old English rūme and Proto-Germanic rūmaz to Proto-Indo-European rewh₁-, meaning to open or make spacious.

lunchroom (English): A room designated as a place to eat lunch; A...

Definitions

  1. A room designated as a place to eat lunch; A...

Ancestry of “lunchroom”, step by step

lunchroom traces back through two separate lines of ancestry.

via English room

StepLanguageWordMeaning
1EnglishroomOpportunity or scope; Space "for" something, or...
2Middle EnglishroumA space or area; A room
3Old Englishrūmroom, space; roomy, spacious, ample, extensive,...
4Proto-West Germanicrūmroomy, spacious; room, open space
5Proto-Germanicrūmazroomy, spacious, open
6Proto-Indo-Europeanrewh₁-free space

via English lunch

StepLanguageWordMeaning
1EnglishlunchA light meal usually eaten around midday, notably...
2EnglishluncheonA formal meal served in the middle of the day;...
Every word from Proto-Indo-European rewh₁-Every word from Proto-Germanic rūmazEvery word from Proto-West Germanic rūm