From the Greek word “enneas,” “ennead” refers to a set of nine (of anything). In ancient Egyptian mythology, the Great Ennead was a group of nine deities that included the creator and sun god Atum and his children Shu (god of air and wind) and Tefnut (goddess of water). The ennead also included Shu and Tefnut’s children Geb (god of the earth) and Nut (goddess of the sky), and their children Osiris (god of death, resurrection, and fertility), Isis (mother of Horus), Seth (god of chaos), and Nephthys (mother of Anubis).