Definition
A writ issuing out of the Court of King's Bench or Chancery to compel a person to find sureties of the peace — that is, to give security against committing a breach of the peace or threatening harm to another. The writ was used when justices of the peace were unwilling or declined to act in their judicial capacity to bind over a party. It was filed upon articles setting out the grounds for seeking security and directed the relevant officer to secure the required sureties.
The writ occupied a narrow but specific procedural role: it was a chancery or King's Bench mechanism that replicated at a higher level what a justice of the peace could accomplish locally. Anderson's Dictionary notes it was very rarely used because the common-law remedy before a justice of the peace was generally adequate. One of the few practical contexts in which it was sometimes invoked was by a wife seeking security against her husband — a circumstance where a local justice of the peace might be reluctant to compel the surety.
Why It Matters in Research
This is a historical evolution term. Researchers encountering supplicavit in primary sources will find it confined almost entirely to English legal materials from the seventeenth through nineteenth centuries. It does not survive as a functional writ in modern American or English practice and will not appear in contemporary procedural codes or rules.
The key research trap is conflating supplicavit with the general surety-of-the-peace process. The writ was not the ordinary mechanism for binding over a defendant — it was the exceptional, elevated route taken when the ordinary mechanism failed. A source mentioning supplicavit therefore signals something beyond routine peace-bonding: it usually reflects either a refusal by local justices to act or a relationship (such as husband and wife) where the local process was practically unavailable or unlikely to succeed.
Researchers using the Law Mind corpus should note that sources treating the surety of the peace generally, or treating recognizances, will often omit supplicavit entirely, folding its function into the broader category. Blackstone's Commentaries is the standard reference point for the writ (4 Bl. Comm. 253), and most dictionary definitions ultimately derive from that passage. Sources that do not cite Blackstone directly — such as the Rapalje & Lawrence entry, which is fragmentary in the available text — are likely summarizing the same tradition rather than adding independent authority.
For corpus researchers, the writ's connection to Chancery procedure is also worth tracking separately from its King's Bench dimension. The Chancery route suggests an equitable flavor to the proceeding, potentially relevant when researching early equity jurisdiction over domestic relations or over matters where common-law courts were unavailable to certain parties.
Historical Dictionary Support
The five source dictionaries present a consistent account with minor differences in emphasis. Black's (both editions) and Wiktionary track almost identically, centering on the writ's issuance from King's Bench or Chancery and its purpose of taking sureties of the peace when justices of the peace declined to act. Blackstone's Commentaries at 4 Bl. Comm. 253 is the shared authority.
Anderson's Dictionary adds the most substantive information beyond Blackstone: the Latin meaning ("he has besought"), the filing of articles as the procedural trigger, the observation that the writ was very rarely used, and the specific example of a wife proceeding against her husband. This makes Anderson's the most practically useful of the five entries for understanding the writ's real-world application.
Burrill's entry, as preserved in the source material, is fragmentary and adds only the Latin gloss ("he hath besought") and a general characterization as a writ "in the nature" of something — the remainder of the entry is not fully available. The Rapalje & Lawrence entry is similarly truncated but confirms the core use case of compelling action where a justice of the peace has refused.
No source disputes any other. The historical dictionaries collectively treat this as a settled, if obscure, procedural writ. None of the sources addresses the writ's eventual disuse or formal abolition, which is a gap researchers should note — the writ likely became obsolete through the consolidation of English procedural law in the nineteenth century rather than through explicit repeal.
Jurisdictional Note
Supplicavit is English in origin and was never transplanted into American practice as a recognized writ. American legal authorities that mention it do so in historical or comparative contexts only. Researchers working in early American colonial records should not expect to find the writ in use, even in colonies with equity courts.