"At any moment I expected to be purged"
The purges were authorised assassinations carried out under the leadership of certain powerful Romans, such as Sulla (82/81 BC) or the Second Triumvirate (43 BC). In the purges, the leaders’ political foes would be declared enemies of Rome, sought out and killed. Tiro, as the confidante of Cicero, would have feared for his life in the purges of the Second Triumvirate
(the combined leadership of Octavian, Mark Antony and Lepidus).