What does mandamus mean?
Mandamus is a formal legal term for a court order, especially a writ directing a public official or institution to perform a duty that the law requires. The word can also mean a forceful command in a more general, historical sense. A mandamus is distinctive because it does not usually prohibit conduct or determine disputed private rights; instead, it compels an obligated party to act. It is often mentioned in phrases such as “writ of mandamus” and appears in administrative and constitutional litigation when a government body is alleged to have failed to perform a mandatory public function. The term comes from Latin, where mandamus means “we command,” and it is now most familiar to lawyers, judges, legal scholars, and officials dealing with public administration.
nounA legal writ or court order requiring a person or public official to perform a duty they are legally obligated to perform. The term is also used more generally for an authoritative command that compels action.
- A writ issued by a court, especially one directing a public official or body to perform a duty imposed by law.
- More generally, a formal order or command compelling a person to act.
"The court issued a writ of mandamus directing the agency to process the application."
"The petitioners sought a mandamus requiring the registrar to enter a judgment that had been delayed."
"In the early modern period, a superior authority could issue a mandamus to an inferior official."
The plural is uncommon but standard; legal writers may also discuss individual mandamus proceedings.
"The court denied the petition because the claims could be addressed through separate mandamuses."
Mandamus literally means “we command” in Latin, a fitting origin for an order that leaves officials no room to refuse.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does mandamus come from?
Mandamus is a Latin word formed from mandāre, “to command,” and the first-person plural present indicative form of that verb, “we command.” It entered English through legal usage, where it denotes a command issued by a court or other authority. The same Latin root underlies English words including mandate, mandatory, and command, reflecting the shared idea of an authoritative order or instruction.
How mandamus is actually used
The word is primarily a formal legal term. In modern British and American legal usage, it usually refers specifically to a writ compelling the performance of a public or official duty; the broader sense is comparatively uncommon.
Easily confused with mandamus
A mandate is an official authorization or instruction, whereas a mandamus is a legal writ compelling the performance of a duty.
An injunction generally prohibits or restricts conduct, while a mandamus commands the performance of a legal duty.