A mittimus is a writ issued by a court or magistrate, directing the sheriff or other executive officer to convey the person named in the writ to a prison or jail, and directing the jailor to receive and imprison the person.

An example of the usage of this word is as follows: "... Thomas Fraser, Gregor Van Iveren and John Schaver having some time since been Confimed by the Committee of the County of Albany for being Persons disaffected to the Cause of America and whose going at large may be dangerous to the State, Ordered Thereupon that a Mittimus be made out to keep them confined till such time as they be discharged by the Board or any other three of the Commissioners." Minutes of the Commissioners for detecting and defeating Conspiracies in the State of New York, Albany County Sessions,1778-1781. (Albany, New York: 1909) Vol. 1, Page 90

• Criminal Justice: A Brief Introduction by Frank Schmalleger (2002)