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
Chinese names for the God of Abrahamic religions composed by Lü Dongbin, the Christian God is denominated by the term "Tiānzhǔ" (天主, literally, "Lord of Heaven"), 800 years before Matteo Ricci and his companions. Islam has enjoyed a long history in China. For Chinese Muslims, the principal term for God is also "Zhēnzhǔ" (真主) but transliterations of the Arabic "Allâh" also exist as "Ālā", and as "Ānlā"="Ān" "Peace"+"Lā" "Help" (阿拉 and 安拉). The term "Húdà" (胡大), from Persian "khudai", for God, is seen more often in north-western China. The earliest documented Chinese Roman Catholic church was founded in China in about 1289. The Roman Catholic Church historically favored