a masculine name: dim. Gus; fem. Augusta; equiv. Fr. Auguste, Ger. August, It. Augusto
(Gaius Julius Caesar Octavianus) 63 - 14; 1st Rom. emperor (27 - 14): grandnephew of Julius Caesar: also called Octavian
See Augustus in American Heritage Dictionary 4
First emperor of Rome (27 BC-AD 14) and grandnephew of Julius Caesar. Born Gaius Octavius, he took the name Gaius Julius Caesar Octavianus—often referred to simply as Octavian in English texts—in 44 after Caesar's assassination. He defeated Mark Antony and Cleopatra in 31 and subsequently gained control over the empire. In 27 he was named emperor and given the honorary title Augustus.