Where does “hartnäckig” come from?

hartnäckig (German) comes from German hart, from Middle High German Hart, from Old High German hart, from Proto-West Germanic hard(ī), from Proto-Germanic harduz, from Proto-Indo-European kert-, from Proto-Turkic *keŕ- — to travel, tour.

hartnäckig (German): obstinate, stubborn

Definitions

  1. obstinate, stubborn

Ancestry of “hartnäckig”, step by step

hartnäckig traces back through two separate lines of ancestry.

via German hart

StepLanguageWordMeaning
1Germanharthard; severe, harsh; sharply, roughly, severely
2Middle High GermanHarthill forest
3Old High Germanharthard
4Proto-West Germanichard(ī)hard
5Proto-Germanicharduzhard; brave
6Proto-Indo-Europeankert-times; to weave, twist together; time
7Proto-Turkic*keŕ-to travel, tour

via German Nacken

StepLanguageWordMeaning
1GermanNackennape of the neck
2Middle High Germannacke
3Proto-Germanichnakkôthe back of the neck; nape
4Proto-Indo-Europeanknog-back of the head, nape, neck
5Proto-Indo-Europeanken-to arise, begin

Words derived from “hartnäckig

Every word from Proto-Turkic *keŕ-