Ancient Egyptian royal titles
This was the name given to the pharaoh at birth. The name itself was preceded by the title "Son of Ra". This was written with the hieroglyph of a duck (za), a homonym for the word meaning "son" (za), next to an image of the sun, a hieroglyph god Ra. It was first introduced to the set of royal titles in the Fourth Dynasty and emphasizes the king's role as a representative of the solar god Ra. When the pharaoh was woman, the preceding title was interpreted as "daughter".