gorgon

From Middle English gorgon, from Latin Gorgō, from Ancient Greek Γοργώ (Gorgṓ), from γοργός (gorgós, “terrible”). Possibly from the same root as the Sanskrit word "garğ" (गर्जन), which is defined as a guttural sound, similar to the growling of a beast, thus possibly originating as an onomatopoeia.