Where does “Kolhorn” come from?

Kolhorn (Dutch) comes from Dutch horn, from Old Dutch horn, from Proto-Germanic hurną, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

Ancestry of “Kolhorn”, step by step

Kolhorn traces back through two separate lines of ancestry.

via Dutch horn

StepLanguageWordMeaning
1Dutchhorn
2Old Dutchhorn
3Proto-Germanichurnąhorn
4Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
5Proto-Indo-Europeankr̥-to turn, to bend
6Proto-Indo-Europeanker-army

via Dutch kol

StepLanguageWordMeaning
1Dutchkolwitch; wizard, magician, sorcerer, conjuror,...
2Proto-Germanickullaz
3Proto-Indo-EuropeangelH-naked; head
Every word from Proto-Indo-European ker-