Dīs Pater Dīs Pater Dīs Pater (pronounced ) was a Roman god of the underworld. Dis was originally associated with fertile agricultural land and mineral wealth, and since those minerals came from underground, he was later equated with the chthonic deities Pluto (Hades) and Orcus. "Dīs Pater" was commonly shortened to simply Dīs and this name has since become an alternative name for the underworld or a part of the underworld, such as the City of Dis of Dante's "The Divine Comedy", which comprises Lower Hell. It is often thought that Dīs Pater was also a Celtic god. This confusion arises from
Pluto uses "Sao Diêm Vương", which was derived from the Chinese term 閻王 (Yánwáng), as "minh" is a homophone for the Sino-Vietnamese words for "dark" (冥) and "bright" (明)). Some Indian languages use the name Pluto, but others, such as Hindi, use the name of "Yama", the God of Death in Hindu and Buddhist mythology. Polynesian languages also tend to use the indigenous god of the underworld, as in Māori "Whiro". Once Pluto was found, its faintness and lack of a resolvable disc cast doubt on the idea that it was Lowell's Planet X. Estimates of Pluto's mass were revised downward