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
Names of God in Islam God point to a mystical "Most Supreme and Superior Name" ("ismu l-ʾAʿẓam" (). This "Greatest Name of God" is said to be "the one which if He is called (prayed to) by it, He will answer." According to a "hadith" narrated by Abdullah ibn Masud, some of the names of God have also been hidden from mankind. More than 1000 names of God are listed in the Jawshan Kabir ( - literally "the Great Cuirass") invocations. The Arabic names of God are used to form theophoric given names commonly used in Muslim cultures throughout the world, including non-Arabic speaking societies.