Definition
Demandum is a Latin term from old English law meaning a demand — specifically, a formal claim or assertion of right made in legal proceedings. In the technical vocabulary of the common law, it carried exceptionally broad scope: Lord Coke described it as a word of such large extent that no other single word in the law could match it, with the possible exception of clameum. The term appears primarily in Latin pleadings and writs from the medieval English legal system, functioning as the formal designator for what a plaintiff claimed or sought to recover in a real action.
Common Confusion
Demandum and demand are not simply Latin and English versions of the same word at the same level of generality. In modern legal usage, "demand" is a functional term covering a wide range of requests, notices, and claims across virtually every area of law. Demandum, by contrast, was a precise term of art within the old common law of real property actions, carrying technical weight that the modern English word does not. Researchers encountering demandum in historical sources should not read it through the lens of modern demand practice.
Why It Matters in Research
Demandum surfaces almost exclusively in medieval and early modern English legal records — plea rolls, Latin writs, and treatises written before or during the transition from Law Latin to English in formal pleading. Researchers working in that stratum of the Law Mind corpus will encounter it as part of the formulaic language of real actions, particularly writs of right and related possessory proceedings.
The critical navigational point is Coke's gloss. His assertion that demandum is among the most expansive words in the common law is not rhetorical flourish — it signals that the term was capable of covering demands relating to land, services, customs, and other rights in ways that no narrower term could. When reading a historical source that uses demandum, the researcher should resist the impulse to translate it simply as "demand" and move on; the word may be doing significant structural work in the pleading.
Burrill's cross-reference to "Demand" is the standard redirect, and researchers will find fuller doctrinal treatment of the underlying concept under that English-language entry in historical dictionaries. However, Burrill preserves the Coke quotation precisely because demandum as a Latin term of art is not fully captured by the modern English gloss.
One trap: the Latin legal vocabulary of English practice is not identical to the Latin of Roman law or canon law. Demandum is a creature of the common law, and researchers working in comparative or ecclesiastical sources should not assume the same technical meaning applies in those contexts.
Historical Dictionary Support
Burrill is the primary dictionary source for this term, and his entry is spare but authoritative. He does no more than define the term, flag its status as a term of art, reproduce Coke's observation from Co. Litt. 291b, and redirect to the English entry for Demand. This economy is appropriate — demandum is a technical placeholder in the Latin pleading system, and its substance lives in the broader doctrine of common law demands and real actions.
What historical dictionaries largely omit is any treatment of how demandum functioned procedurally within specific writs, or how the concept evolved as Law Latin was progressively displaced from English pleading. By the time Burrill compiled his dictionary, the term was effectively historical — a remnant of a pleading system that had been largely superseded. Researchers seeking the fuller procedural context will need to go beyond dictionary sources to Coke's Institutes directly, or to treatises on the forms of action.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Demand; Real Actions; Forms of Action (Historical)