Cerberus, in Greek myth, is a monster and pet under Hades that guards the gates of the underworld, the realm of Hades and the dead .Cerberus was one of the monsters born from the union of Echidna and Typhon, both as monstrous and hideous as their offspring. Echidna was half-woman, half-serpent, while Typhon was the most fierce of all creatures.
Among his brothers, the most famous are Hydra, Chimera, and Orthrus. It is generally depicted as a vicious, gargantuan dog with three heads, although accounts may vary. Cerberus is in fact the Latin transliteration of the Greek name Kerberos.
The dominance of Latin throughout the modern Western world was for many centuries precipitated by functionaries of the Roman Catholic Church. However within contemporary non-denominational academic discourse, the use of Latin for non-Roman words is in sharp decline.