Note 179 — THE THEOGONY.
George Chapman translation
The fifty-headed Cerberus.] Cerberus was the name of a place, though esteemed the dog of hell. We are told by Eusebius from Plutarch, that Cerberus was the Sun: but the term properly signified the temple, or place, of the Sun. The great luminary was styled by the Amonians both Or and Abor; that is, light, and the parent of light: and Cerberus is properly Kir-abor, the place of that deity. The same temple had different names from the diversity of the god’s titles, who was there worshipped. It was called Tor-caph-el; which was changed to τρικεφαλος: and Cerberus was from hence supposed to have had three heads. Bryant.
The poets increased the number of heads, as they seem to have thought a multitude of heads or arras sublimely terrific. Pindar out-does Hesiod by a whole fifty, and speaks of the hundred-headed Cerberus. Εκατον τα κεφαλον.