Definition
Brevia (Latin: writs) is the plural form of breve. In English common law, the term refers collectively to the formal written commands issued under royal authority directing a court, officer, or party to perform or refrain from a specified legal act. Each such instrument — a writ — was the procedural engine by which a legal action was commenced or a court's judgment enforced. Brevia is encountered almost exclusively in historical legal sources; modern practice uses "writs" throughout.
Common Confusion
Brevia and breve are the same word in different grammatical numbers, not different legal instruments. Researchers encountering either form in a historical source are dealing with the writ system generally. The confusion arises because individual writ names (breve de recto, breve testatum, etc.) appear in the singular while general discussions of the writ system use brevia. Neither form should be read as naming a specific, distinct writ in isolation.
Recognized Forms
/SUBTYPES
Historical sources, particularly the second edition of Black's Law Dictionary, organize brevia into recognized subcategories. These categories are not interchangeable and each opens a different research path:
Brevia adversaria. Adversary writs; writs brought by an opposing party to recover land from a current possessor. These were contested proceedings from the outset, distinguishing them from writs sought by consent.
Brevia amicabilia. Amicable or friendly writs; writs issued with the agreement or consent of the parties. These functioned more like procedural formalities enabling parties to obtain a court's resolution of a dispute they had jointly submitted, rather than initiating genuinely adversarial proceedings.
Brevia anticipantia. Anticipating or preventive writs; writs designed to forestall a threatened injury before it occurred rather than to remedy one already suffered. Six writs were historically classified under this heading at common law: writ of mesne, warrantia chartae, monstraverunt, audit querela, curia claudenda, and ne vexes. (The second edition entry is truncated in surviving sources but these six are documented in Blackstone and related authorities.)
Brevia de cursu. Writs of course; writs issued as a matter of routine by the Chancery clerks without requiring a special grant, available to any qualifying plaintiff upon payment of the standard fee. These were the workhorses of the common law system.
Brevia magistralia. Writs framed by the masters (magistri) in Chancery to meet novel situations not covered by writs of course. Their issuance was the subject of the Statute of Westminster II (1285), which authorized clerks in Chancery to frame new writs in cases similar to those already covered.
Brevia judicialia. Judicial writs; writs issuing from a court in the course of pending litigation, as opposed to original writs issuing from Chancery to commence an action.
Brevia originalia. Original writs; writs issued out of Chancery to initiate a common law action by commanding the defendant to appear and answer the plaintiff's claim.
Why It Matters in Research
Brevia is encountered almost exclusively in pre-nineteenth-century English legal sources, Year Books, Chancery records, and the institutional writers (Bracton, Littleton, Coke, Blackstone). A researcher who does not recognize the subcategory distinctions will misread historical procedural arguments. Whether a writ was de cursu or magistralia determined how it was obtained and whether its form could be challenged; whether it was judiciale or originale determined which court issued it and at what stage of litigation it arose.
The writ system was formally abolished in England by the Common Law Procedure Acts of the mid-nineteenth century and displaced in the United States by the adoption of code pleading and, later, the Federal Rules of Civil Procedure (1938). Because brevia as a working concept predates modern civil procedure by centuries, it appears in American sources almost entirely in historical argument, title disputes tracing back to colonial-era land grants, and scholarship on the development of common law forms of action. Researchers using Law Mind's corpus of historical materials should treat every writ reference as a potential research thread: the specific writ form often defines the remedy available, the court's jurisdiction, and the pleading rules that applied.
The truncation of the Black's second edition entry for brevia anticipantia is itself a research trap. The six writs classified under that heading are not listed in that dictionary's surviving text for this entry but are recoverable from Blackstone's Commentaries and Coke's reports.
Historical Dictionary Support
Both editions of Black's Law Dictionary treat brevia as a straightforward cross-reference to breve, with the second edition adding the subcategory structure that gives the term its practical research value. Neither edition attempts a substantive account of how the writ system operated; both assume the reader will pursue breve and the individual writ entries. The second edition's citation to 6 Coke for brevia adversaria points toward Coke's Reports as the primary authority for that subcategory.
What the dictionary entries do not supply — and what researchers must seek elsewhere — is the procedural context: how writs were obtained, what formal defects voided them, and how the transition from Latin to English writs (and eventually to summons-based pleading) altered the system across jurisdictions. For that level of detail, Blackstone's Commentaries (Book III) and Maitland's Forms of Action at Common Law remain the standard references.
Jurisdictional Note
The writ system was received into American colonial law and persisted in varying forms into the nineteenth century, but adoption was uneven. Some American states retained particular writs (habeas corpus, mandamus, certiorari) long after abolishing the general system of original writs. Researchers working in pre-statehood records or early republic pleading disputes should not assume that English classifications of brevia map cleanly onto the local practice of any given colony or state.