The exact meaning of the name Set is unknown, but is usually considered to be either (one who) dazzles or pillar of stability, one connected to the desert, and the other tending to indicate the institution of monarchy. It is reconstructed to have been originally pronounced *Sūtaḫ based on the occurrence of his name in Egyptian hieroglyphics (swt ḫ), and his later mention in the Coptic documents with the name Sēt. Set had a brother called Osiris and two sisters called Isis and Nephthys. His Mother was the sky goddess Nut and his father was the earth god Geb.