Myrtilus was a son of Hermes. He was the charioteer of Oenomaüs, king of Elis, and after betraying his master was thrown into the sea by Pelops. His name obviously seems to mean 'myrtle' (myrtos), although he was not metamorphosed into one, for example. Perhaps his name is a blend of myron, 'oil' and tylos, 'lump', 'knob', this having some phallic reference.