Where does “nonfloor” come from?

nonfloor (English) comes from English floor, from Middle English flor, from Old English flōr, from Proto-Germanic flōraz, from Proto-Indo-European pleh₂ros, from Proto-Indo-European pleh₂- — flat.

nonfloor (English): Not of or pertaining to a floor

Definitions

  1. Not of or pertaining to a floor

Ancestry of “nonfloor”, step by step

nonfloor traces back through two separate lines of ancestry.

via English floor

StepLanguageWordMeaning
1EnglishfloorThe interior bottom or surface of a house or...
2Middle EnglishflorA floor; the bottom surface of a room or...
3Old Englishflōrfloor, pavement, ground; floor, pavement, ground,...
4Proto-Germanicflōrazground; floor
5Proto-Indo-Europeanpleh₂rosflat; floor
6Proto-Indo-Europeanpleh₂-flat

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
Every word from Proto-Indo-European pleh₂-Every word from Proto-Indo-European pleh₂rosEvery word from Proto-Germanic flōraz