gorgoneion
A (representation of a) gorgon's head, especially that of Medusa.
The gorgoneion or "bodiless head of fright" antedates by many centuries the Gorgon with a woman's body.
A theatrical mask depicting the face of a gorgon.
historical
Where it comes from
From Ancient Greek γοργόνειον (gorgóneion), neuter of γοργόνειος (gorgóneios, “pertaining to a Gorgon”).
Adapted from the Wiktionary entry gorgoneion (CC BY-SA 4.0).