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 Judaism God") is used at Genesis 21:33 to refer to God. It is common Jewish practice to restrict the use of the names of God to a liturgical context. In casual conversation some Jews, even when not speaking Hebrew, will call God "HaShem" (), which is Hebrew for "the Name" (cf. Leviticus 24:11 and Deuteronomy 28:58). Likewise, when quoting from the Tanakh or prayers, some pious Jews will replace "Adonai" with "HaShem". For example, when making audio recordings of prayer services, "HaShem" will generally be substituted for "Adonai". A popular expression containing this phrase is "Baruch HaShem", meaning "Thank God" (literally,