Nephthys
Nephthys (Greek: Νέφθυς) or Nebthet was a goddess in ancient Egyptian religion. A member of the Great Ennead of Heliopolis in Egyptian mythology, she was a daughter of Nut and Geb. Nephthys was typically paired with her sister Isis in funerary rites because of their role as protectors of the mummy and the god Osiris and as the sister-wife of Set.
Etymology
Nephthys is the Greek form of an epithet (transliterated as Nebet-het, and Nebt-het, from Egyptian hieroglyphs).The origin of the goddess Nephthys is unclear but the literal translation of her name is usually given as "Lady of the House," which has caused some to mistakenly identify her with the notion of a "housewife," or as the primary lady who ruled a domestic household. This is a pervasive error repeated in many commentaries concerning this deity. Her name means quite specifically, "Lady of the [Temple] Enclosure" which associates her with the role of priestess.
This title, which may be more of an epithet describing her function than a given name, probably indicates the association of Nephthys with one particular temple or some specific aspect of the Egyptian temple ritual. Along with her sister Isis, Nephthys represented the temple pylon or trapezoidal tower gateway entrance to the temple which also displayed the flagstaff. This entrance way symbolised the horizon or akhet.