Definition
Contramandatio placiti (Latin: "countermand of the plea") is an obsolete common law procedural term referring to the countermanding or revoking of a writ of summons before the defendant had appeared in court. In early English practice, after a plaintiff issued original process summoning a defendant to answer a suit, the plaintiff retained the ability to withdraw or cancel that summons before the defendant's appearance was entered. The contramandatio placiti was the formal mechanism by which that withdrawal was effected. Once the countermand was lodged, the pending process was discharged, and the suit could not proceed on that writ without fresh process being issued.
Why It Matters in Research
This term appears almost exclusively in sources treating early English common law procedure — particularly the pre-modern writ system — and will not be found in American procedural materials after the adoption of code pleading in the nineteenth century. Researchers encountering it should treat it as a marker of archaic English practice, most likely in materials pre-dating the reforms introduced by the Common Law Procedure Acts of the 1850s. It is not a term with any surviving operational significance in modern American or English procedure.
The term is useful principally as a period marker: its presence in a document or treatise signals practice under the original writ system, where formal process had to be tracked and countercommanded with precision. In that system, a plaintiff who wished to discontinue before appearance had a defined procedural act to perform; failure to perform it correctly could have consequences for costs or for the ability to bring fresh suit. Researchers studying the history of nonsuit, discontinuance, and voluntary dismissal should be aware of contramandatio placiti as a functional ancestor of those modern devices, even though the term itself dropped out of usage well before American courts systematized voluntary dismissal rules.
Be cautious when reading digests or abridgments of early English law that collect procedural Latin terms: such collections often reproduce terminology without clarifying whether the procedure had any analog in American colonial courts. In most American jurisdictions, the reception of English common law was selective, and highly technical writ-system terminology of this kind did not cross the Atlantic in operative form.
Historical Dictionary Support
Rapalje and Lawrence define contramandatio placiti as the countermanding of a plea or writ of summons, placing it squarely within the formal vocabulary of early English writ practice. Their treatment is brief, consistent with how specialized Latin procedural terms were handled in nineteenth-century American law dictionaries — identified and translated, but not elaborated, because by the time such dictionaries were compiled the underlying procedure had largely ceased to matter to practicing American lawyers.
No substantive divergence appears across the available sources; the term is narrow enough that dictionaries defining it at all tend to define it the same way. The more significant point is what the historical dictionaries omit: they do not explain the procedural context in which contramandatio placiti operated, how it related to discontinuance or nonsuit, or what consequences attached to a defective countermand. Researchers needing that context must turn to the older English procedural treatises — Blackstone's Commentaries, the older editions of Tidd's Practice, or Fitzherbert's Natura Brevium — rather than to American law dictionaries, which treat the term as a translation exercise rather than a live procedural problem.