Orcus because Pluto and 90482 Orcus are both plutinos. Orcus Orcus () was a god of the underworld, punisher of broken oaths in Italic and Roman mythology. As with Hades, the name of the god was also used for the underworld itself. In the later tradition, he was conflated with Dis Pater. Orcus was portrayed in paintings in Etruscan tombs as a hairy, bearded giant. A temple to Orcus may have existed on the Palatine Hill in Rome. It is likely that he was transliterated from the Greek daemon Horkos, the personification of Oaths and a son of Eris. The origins
Ancient Mesopotamian underworld who is named Neti in Sumerian. The god Namtar acts as Ereshkigal's "sukkal", or divine attendant. The dying god Dumuzid spends half the year in the underworld, while, during the other half, his place is taken by his sister, the scribal goddess Geshtinanna, who records the names of the deceased. The underworld was also the abode of various demons, including the hideous child-devourer Lamashtu, the fearsome wind demon and protector god Pazuzu, and "galla", who dragged mortals to the underworld. The Sumerians had a large number of different names which they applied to the underworld, including "Arali", "Irkalla", "Kukku", "Ekur",