[QUOTE=Queen Bruin]
Possibly, but there are other ways to tell Gaius from Gaius. The list of names you see over and over (I think there are less than 20 of them for men) were only one part of the name. Roman names had three parts, praenomen, nomen, and cognomen. The *praenomen *are the names you are referring to - Gaius, Tiberius, Claudius, etc. The *nomen *denoted your family branch, or *gens *- like Julius. Then there is the cognomen. Well, not everyone got a *cognomen *- these are sort of nicknames, like Caesar (which is odd in that it became a title; it means hairy). Pompey picked *Magnus *as his cognomen, trying to associate himself with Alexander the Great.
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You’ve got this a little bit off. First off, the cognomen usually was not a nickname. While in the very early days of the Republic this might have been true, in general the cognomen became a way of delineating various subbranches of greater family. A fourth name, the ‘agnomen’ was the more usual name added on in a man’s lifetime, Pompey’s substitution of Magnus for his cognomen was unusual at the time he did it.
Scipio the Great’s name is a better example of naming conventions. his full name was Publius Cornelius Scipio Africanus Major, although he was born Publius Cornelius Scipio, which was the same name as his father.
The name Publius was his praenomen, and has been said a few times in this thread, correlates roughly to a modern day first name, although was not frequently used outside of family situations.
Cornelius, which would have been what he generally would have been called in his early public life, was his nomen. The Cornelii were a large family, with many smaller branches.
The branch of the Cornelii that PCSA belonged to was the Scipio branch. Scipio, the cognomen, had separated from the main Cornelii branch a few hundred years before our man’s lifetime.
Scipio added the name Africanus as an agnomen after his defeat of the Carthaginians. The name was about halfway between a nickname and an honorary title. The Major would be considered an additional agnomen, but wouldn’t have bee nused in his lifetime. It served to differentiate him to historians from his adopted grandson who also was known as Scipio Africanus.
These naming conventions only apply to men. Roman women would only have a praenomen and a nomen. Their nomen would change at marriage from the feminine form of the father’s nomen to that of their husband’s.