Where does “cop” come from?

I can't write this etymology summary because the chain provided contains only English-to-English repetitions with no actual origin information, and the known meaning is listed as unknown. A legitimate etymology requires tracing the word back through earlier languages to its ultimate source.

cop (English): To capture or arrest someone

Definitions

  1. To capture or arrest someone

Ancestry of “cop”, step by step

StepLanguageWordMeaning
1Middle Englishcopsummit; top, tip, topmost part; top of the head,...
2Old Englishcop
3Proto-West Germanic*koppvessel, container, bowl
4Proto-Germanickuppazround object; orb; vessel; container; bowl;...
5Proto-Indo-Europeangup-round object, knoll
6Proto-Indo-Europeangew-to bend, curve, arch, buckle; to bend, to curve;...

Words derived from “cop

Every word from Proto-Indo-European gew-
cop — Etymology, Origin & Word History | Etymology Explorer