Where does “guest room” come from?

guest room (English) comes from English guest, from Middle English gest, from Old Norse gestr, from Proto-Norse ᚷᚨᛊᛏᛁᛉ, from Proto-Germanic gastiz, from Proto-Indo-European gʰóstis, from Proto-Indo-European -tis — Derives abstract/action nouns from verb roots.

guest room (English): A room in a home or hotel set aside for the use of visiting guests

Definitions

  1. A room in a home or hotel set aside for the use of visiting guests

Ancestry of “guest room”, step by step

guest room traces back through two separate lines of ancestry.

via English guest

StepLanguageWordMeaning
1EnglishguestA recipient of hospitality, especially someone...
2Middle EnglishgestA guest, visitor; somebody staying at another's...
3Old Norsegestrguest
4Proto-Norseᚷᚨᛊᛏᛁᛉguest
5Proto-Germanicgastizstranger, guest
6Proto-Indo-Europeangʰóstisstranger, host
7Proto-Indo-European-tisDerives abstract/action nouns from verb roots

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
Every word from Proto-Indo-European -tis