In Egyptian mythology, Nu (also spelt Nun), is the deification of the primordial watery abyss, in the Ogdoad cosmogony, the name meaning abyss. Due to being a concept, Nu was viewed as androgynous, his female form being named Naunet (also spelt Nunet), which is simply the female form of the word Nu. Like the others of the 4 primordial concepts of the Ogdoad, Nu's male form was depicted as a frog, or a frog-headed man, and Nu's female form was pictured as a snake, or a snake-headed woman.