Where does “earhorn” come from?

earhorn (English) comes from English horn, from Middle English horn, from Old English horn, from Proto-West Germanic horn, from Proto-Germanic hurną, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

Ancestry of “earhorn”, step by step

earhorn traces back through two separate lines of ancestry.

via English horn

StepLanguageWordMeaning
1EnglishhornA hard growth of keratin that protrudes from the...
2Middle EnglishhornA horn; A jutting or projecting extremity of...
3Old Englishhornhorn; gable
4Proto-West Germanichornhorn
5Proto-Germanichurnąhorn
6Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
7Proto-Indo-Europeankr̥-to turn, to bend
8Proto-Indo-Europeanker-army

via English ear

StepLanguageWordMeaning
1EnglishearThe organ of hearing, consisting of the pinna,...
2Middle EnglishēreThe ear organ that receives sound
3Old Englishēareear
4Proto-West Germanicauʀāear
5Proto-Germanicausôear
6Proto-Indo-Europeanh₂ṓwsear
7Proto-Indo-Europeanh₂ew-to enjoy; to consume; to perceive, see, to be...
Every word from Proto-Indo-European ker-Every word from Proto-Indo-European kr̥-Every word from Proto-Indo-European ḱer-
earhorn — Etymology, Origin & Word History | Etymology Explorer