Hades three-headed guard dog Cerberus. The Etruscan god Aita and the Roman gods Dis Pater and Orcus were eventually taken as equivalent to Hades and merged into Pluto, a Latinization of Plouton (", Ploútōn"), itself a euphemistic title often given to Hades. The origin of Hades' name is uncertain, but has generally been seen as meaning "the unseen one" since antiquity. An extensive section of Plato's dialogue "Cratylus" is devoted to the etymology of the god's name, in which Socrates is arguing for a folk etymology not from "unseen" but from "his knowledge ("eidenai") of all noble things". Modern linguists have
Orcus (Dungeons & Dragons) 4th Edition for Dummies" describes Orcus as "the most monstrous evil in the game". Orcus was first presented in the "Eldritch Wizardry" supplement in 1976, by Gary Gygax and Brian Blume, for the original (white box) "Dungeons & Dragons" game. Although the book states that there are several such demon Princes, only Orcus and Demogorgon are detailed, "two of the greatest of these exceptional demon lords". Game statistics for Orcus appear on page 27, while a description of Orcus appears on page 35 with an accompanying illustration, and a description for his "Wand of Orcus" appears on page 42 under