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) H1-4 "Bloodstone" series of adventures, by Douglas Niles and Michael Dobson. His involvement was only hinted at in H1 "Bloodstone Pass" (1985) through the activities of his high priest. In H2 "The Mines of Bloodstone" (1986), minions of Orcus are involved in a number of activities and plots, and the authors hint on page 7 that "Orcus has special reasons for being interested in Bloodstone Pass", promising that more will be revealed in module H3. On page 21, it is revealed that evil duergar have built a temple to Orcus underground, involving a series of planar gates through which he