Where does “ladderproof” come from?

ladderproof (English) comes from English proof, from Middle English proof, from Old French prove, from Latin proba, from Latin probāre, from Latin probō, from Latin Probus, from Proto-Indo-European pro-bhwo- — passed , crossed.

ladderproof (English): Resistant to the formation of ladders

Definitions

  1. Resistant to the formation of ladders

Ancestry of “ladderproof”, step by step

ladderproof traces back through two separate lines of ancestry.

via English proof

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

via English ladder

StepLanguageWordMeaning
1EnglishladderA frame, usually portable, of wood, metal, or...
2Middle Englishladderladder; A frame for a cart
3Old Englishhlǣder
4Proto-West Germanic*hlaidrijuladder
5Proto-Germanichlaidrijōladder
6Proto-Indo-Europeanḱley-to shelter, cover; to lean, slope, incline
7Proto-Indo-Europeanḱel-to cover; to incline
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Indo-European por-