What is "ear dagger"

n. A medieval dagger with a distinctive ear-shaped pommel

An ear dagger is a relatively rare and exotic form of dagger that was used during the late Middle Ages and Renaissance. It is so named because the pommel of the dagger has a very distinctive shape, somewhat resembling a human ear. Ear daggers frequently have a single sharpened edge that ends in an acute point.

It is thought that the ear dagger was introduced to Europe from Spain, where it presumably originated from the Moors.