The meaning of the name Septimus is Seventh. The origin of the name Septimus is Latin. This is the culture in which the name originated, or in the case of a word, the language.
Septimius Severus, born Lucius Septimius Severus Pertinax on or around 145, was a Roman emperor from 193 to 211. He founded a personal dynasty and converted the Roman government to a monarchy. His reign marked a critical stage in politics that later influenced the Roman Empire.