Where does “ladder wall” come from?

ladder wall (English) comes from English ladder, from Middle English ladder, from Old English hlǣder, from Proto-West Germanic *hlaidriju, from Proto-Germanic hlaidrijō, from Proto-Indo-European ḱley-, from Proto-Indo-European ḱel- — to cover; to incline.

ladder wall (English): a type of wall obstacle in obstacle course racing...

Definitions

  1. a type of wall obstacle in obstacle course racing...

Ancestry of “ladder wall”, step by step

ladder wall traces back through two separate lines of ancestry.

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

via English Wall

StepLanguageWordMeaning
1EnglishWallThe Berlin Wall
2Middle EnglishwallAlternative form of wale
3Old Englishweallwall; fervour; uproar; boiled or mulled wine
4Proto-Germanicwallazwell, spring; wall, rampart, entrenchment
5Latinvallumwall, rampart, entrenchment
6Proto-Indo-Europeanwēl-to see, perceive
Every word from Proto-Indo-European ḱel-Every word from Proto-Indo-European ḱley-Every word from Proto-Germanic hlaidrijō