Where does “storeroom” come from?

Storeroom comes from English room, which derives from Middle English rome, Old English rūme, and Proto-Indo-European roots meaning space or expanse.

storeroom (English): A room used for storage

Definitions

  1. A room used for storage

Ancestry of “storeroom”, step by step

storeroom 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 store

StepLanguageWordMeaning
1EnglishstoreA place where items may be accumulated or...
2Middle Englishstoresupplies, provisions; livestock, farm animals;...
3Old Frenchestorbattle; combat
4Frankishsturmstorm, commotion, battle; storm
5Proto-Germanicsturmazstorm
6Proto-Indo-European(s)twer-to rotate, swirl, twirl, move around; to turn...

Words derived from “storeroom

Every word from Proto-Indo-European rewh₁-
storeroom — Etymology, Origin & Word History | Etymology Explorer