Tragus, from the Latin tragos, goat: the skin-covered, cartilaginous flap just anterior to the opening of the external ear canal. "Covering your ears" with your fingers is done by pressing the tragus down over the opening.
Another name for the tragus-hair is barbula, the diminutive of barbus, Latin for beard and the ancestral root of barber, barb, and beard.
Goat or satyr? Barbula on the tragus of a middle-aged man.
Photo by C. Carpenter
A satyr from an ancient Roman woodcut: hardly the image of the sexy satyr usually depicted, but the hairy ear is nice (yes, that is an ear and not the side-hair of a baldpate). Adapted from the Dictionary of Greek and Roman Antiquities, 3rd Edition by Anthony Rich. 1874