Where does “nondormitory” come from?

nondormitory (English) comes from English non, from French non, from Old French non, from Latin nōn, from Old Latin noenum, from Proto-Indo-European óynos — one; single.

nondormitory (English): Not of or pertaining to a dormitory

Definitions

  1. Not of or pertaining to a dormitory

Ancestry of “nondormitory”, step by step

nondormitory traces back through two separate lines of ancestry.

via English non

StepLanguageWordMeaning
1EnglishnonObsolete form of none
2Frenchnonno; not; a no, a negative response
3Old Frenchnonno; not; Alternative form of nom
4Latinnōnnot
5Old Latinnoenum
6Proto-Indo-Europeanóynosone; single

via English dormitory

StepLanguageWordMeaning
1EnglishdormitoryA room containing a number of beds for sleeping,...
2Middle Englishdormitory
3Latindormitoriuma sleeping-room, dormitory
4Latindormitoriusof or for sleeping
Every word from Proto-Indo-European óynosEvery word from Old Latin noenumEvery word from Latin nōn