Naming of moons underworld, and Nix (a respelling of Nyx), mother of Charon, is the goddess of darkness and the night. Kerberos is a giant three-headed dog who guards the entrance to the underworld. The fifth moon is named for the river Styx that forms the boundary between the worlds of the living and the dead. The name of Eris's moon Dysnomia was suggested by its discoverer Michael E. Brown, who also suggested the name of the dwarf planet. The name has two meanings: in mythology Dysnomia (lawlessness) is the daughter of Eris (chaos). However, the name is also an intentional reference to
Greek mythology to prove, as in the case of the Greek Moirai and the Norns of Norse mythology. It appears that the Mycenaean religion was the mother of the Greek religion and its pantheon already included many divinities that can be found in classical Greece. However, Greek mythology is generally seen as having heavy influence of Pre-Greek and Near Eastern cultures, and as such contains few important elements for the reconstruction of the Proto-Indo-European religion. Consequently, Greek mythology received minimal scholarly attention in the context of Indo-European comparative mythology until the mid 2000s. Archaeology and mythography have revealed influence from Asia Minor