Where does “fireproof” come from?

Fireproof comes from English fire, from Middle English fier, from Old English fȳr, from Proto-Germanic fōr, ultimately from Proto-Indo-European péh₂wr̥ meaning fire.

fireproof (English): Resistant to damage from fire; To make resistant...

Definitions

  1. Resistant to damage from fire; To make resistant...

Ancestry of “fireproof”, step by step

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

Words derived from “fireproof

Every word from Proto-Indo-European pr̥tós