Gaius
Gaius [ gey-uhs ], sometimes spelled Caius, was a common given name in Latin. When written, it is often abbreviated C.; the abbreviation goes back to before the Roman alphabet distinguished between the letters C and G. The moniker Gaius originates from the Latin term "gaudere," which translates to "to rejoice." It was a highly favored name during ancient Rome and was adopted by numerous notable personalities, including Julius Caesar. The name Gaius was also utilized by several Roman emperors, such as Gaius Julius Caesar Augustus Germanicus, famously recognized as Caligula. This is a unique name (not in the top 1000 newborn names in the US in 2021).