Nephthys (from Greek: Νέφθυσ, Néphthus) is a goddess in ancient Egyptian religion, often associated with mourning and protection. Her name is transliterated as Nebt-het or Nebut-het, which means "Lady of the Mansion" or "Mistress of the House," referring to the mansion of the dead. In Hebrew, she is sometimes referred to as נפתיס (Neftis). Nephthys is the daughter of Geb (the earth god) and Nut (the sky goddess), and the sister of Isis, Osiris, and Set. She is often depicted as a woman with a hieroglyph of a house on her head, symbolizing her role as a protector of the deceased and a mourner. In Greek mythology, she is sometimes conflated with the goddess Hecate. Nephthys is also associated with the night and the underworld, and she is often paired with Isis in their roles as protectors of Osiris and guides for the dead. In ancient Egyptian texts, she is invoked for protection and healing, and she is often mentioned alongside Isis in spells and rituals related to the afterlife.