Where does “Kornhorn” come from?

Kornhorn (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 “Kornhorn”, step by step

Step	Language	Word	Meaning
1	Dutch	horn	—
2	Old Dutch	horn	—
3	Proto-Germanic	hurną	horn
4	Proto-Indo-European	ḱer-	to grow, to make grow, to nourish; to plait,...
5	Proto-Indo-European	kr̥-	to turn, to bend
6	Proto-Indo-European	ker-	army

Every word from Proto-Indo-European ker- →