Where does “knock” come from?

Knock comes from Middle English knocken, from Old English cnocian, from Proto-Germanic knukōną and knukô, ultimately from Proto-Indo-European gen- with the suffix -eh₂.

knock (English): An abrupt rapping sound, as from an impact of a...

Definitions

  1. An abrupt rapping sound, as from an impact of a...

Ancestry of “knock”, step by step

knock traces back through 3 separate lines of ancestry.

via Middle English knokken

StepLanguageWordMeaning
1Middle EnglishknokkenTo pound; to beat down
2Old Englishcnocianto knock; to knock on something; to hit, strike
3Proto-GermanicknukōnąTo pound on; beat on; knock
4Proto-Indo-Europeangnew-a bundle; knot; knot, bundle
5Proto-Indo-Europeangen-to squeeze, pinch, kink, ball up, concentrate; to...

via Irish cnoc

StepLanguageWordMeaning
1Irishcnochill, mount
2Old Irishcnocchill; lump; swelling
3Proto-Celtic*knukkosprotuberance; hill

via Scottish Gaelic cnoc

StepLanguageWordMeaning
1Scottish Gaeliccnochill, hillock, knoll, eminence; heel kibe;...

Words derived from “knock

Every word from Proto-Indo-European gen-