Augus′tus (venerable), the title assumed by Octavius, who, after his adoption by Julius Caesar, took the name of Octavianus (i.e. Ex-Octavius), according to the Roman fashion; and was the first peacefully acknowledged emperor of Rome. He was emperor at the birth and during half the lifetime of our Lord; but his name has no connection with Scriptural events, and occurs; only once (Luke 2:1) in the New Testament.