Where does “nonfireproof” come from?

nonfireproof (English) comes from English fireproof, from English -proof, from English proof, from Middle English proof, from Old French prove, from Latin proba, from Latin probāre, from Latin probō — passed , crossed.

nonfireproof (English): Not fireproof

Definitions

  1. Not fireproof

Ancestry of “nonfireproof”, step by step

nonfireproof traces back through two separate lines of ancestry.

via English fireproof

StepLanguageWordMeaning
1EnglishfireproofResistant to damage from fire; To make resistant...
2English-proofUsed to form adjectives denoting an impervious or...
3EnglishproofAn effort, process, or operation designed to...
4Middle Englishproof
5Old Frenchprove
6Latinprobatest, trial; proof, evidence
7Latinprobāre
8Latinprobōto approve, permit, commend
9LatinProbusgood, serviceable, excellent, superior, able
10Proto-Indo-Europeanpro-bhwo-being in front, prominent
11Proto-Indo-Europeanpro-toward, forward
12Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
13Proto-Indo-Europeanper-before, in front; first; to go through
14Proto-Indo-Europeanpr̥tóspassed , crossed

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 pr̥tós