Where does “knockdown” come from?

Knockdown derives from English knock and down, where down comes from Old Norse dúnn, Old English dūn, Proto-Celtic dūnom, Gaulish dunum, and ultimately Proto-Indo-European h₂epo meaning away or off.

knockdown (English): An act of knocking down or the condition of being...

Definitions

  1. An act of knocking down or the condition of being...

Ancestry of “knockdown”, step by step

knockdown traces back through two separate lines of ancestry.

via English knock

StepLanguageWordMeaning
1EnglishknockAn abrupt rapping sound, as from an impact of a...
2Middle EnglishknokkenTo pound; to beat down
3Old Englishcnocianto knock; to knock on something; to hit, strike
4Proto-GermanicknukōnąTo pound on; beat on; knock
5Proto-Indo-Europeangnew-a bundle; knot; knot, bundle
6Proto-Indo-Europeangen-to squeeze, pinch, kink, ball up, concentrate; to...

via English Down

StepLanguageWordMeaning
1EnglishDownusually known as County Down
2Middle Englishdoundown
3Old Englishdūnhill, down; hill, dune; hill, mountain
4Proto-Germanic*dūnā
5Proto-Celticdūnomstronghold, rampart
6Proto-Indo-Europeandʰewh₂-smoke; mist, haze

Words derived from “knockdown

Every word from Proto-Indo-European gen-