proscription A sentence of proscription was even worse than a sentence of death. The man was declared to be an outlaw. A reward was offered for his murder; his sons and grandsons were prohibited from holding public office; and his property was seized. Antony, Octavius, and Lepidus used proscription not only to wipe out their enemies, but also to raise money for their war against Brutus and Cassius.