Praenomen

Noun

1. An Ancient Roman given name.

   "Julius Caesar's praenomen was Gaius."

2. The throne name of a pharaoh, the fourth of the five names of the royal titulary, traditionally encircled by a cartouche and preceded by the title nswt-bjtj.

   "Tutankhamun's praenomen or throne name was Nebkheperrure, "Lord of the forms of Ra"."

3. The genus name in a binomial scientific name.

   "In the name Tyrannosaurus rex, "Tyrannosaurus" is the praenomen."