Definition
A term from Law French meaning "except" or "unless." Used in early English legal texts and pleadings to introduce an exception or qualification to a preceding statement. Functionally equivalent to the modern English conjunctions "except" or "unless" in limiting or carving out conditions from a general rule or obligation.
Why It Matters in Research
MESQUE appears almost exclusively in medieval and early modern English legal records, Year Books, and treatises composed in Law French — the Norman-derived legal lingua franca of the English courts from roughly the twelfth through the seventeenth centuries. Researchers encountering this term in historical documents should treat it as a signal word: whatever follows it qualifies, limits, or creates an exception to the proposition immediately preceding it. Missing or mistranslating MESQUE can produce a meaning that is precisely the opposite of what the source intends — transforming a general rule into an absolute one, or obscuring a crucial carve-out.
The term does not survive into modern legal usage in any functional sense. It is a reading-comprehension problem, not a doctrine. Researchers working with Year Book materials, early plea rolls, or treatises such as Britton, Fleta, or the Fet Assaver will encounter it most frequently. Burrill's citation to the Fet Assaver (§ 23) confirms its currency in that genre of Anglo-Norman instructional legal literature.
Because Law French was never fully standardized in spelling, researchers should expect variant forms. The underlying meaning — a simple exceptive conjunction — remains consistent across variants.
Historical Dictionary Support
Burrill's Law Dictionary offers the sole entry among the shelf sources, defining MESQUE concisely as "Except; unless" and anchoring the definition with a citation to the Fet Assaver, § 23. The entry is brief because the term warrants no more: it is a function word, not a term of legal art carrying substantive doctrinal weight. Burrill does not elaborate on nuances between "except" and "unless" as translations, and for practical purposes none is needed — both readings convey the same exceptive function in context.
No other major historical legal dictionaries in the standard corpus appear to break with Burrill's treatment. The term's absence from later legal dictionaries reflects the natural attrition of Law French from English legal practice following the Proceedings in Courts of Justice Act 1731, which mandated English as the language of legal proceedings in England.
Jurisdictional Note
MESQUE is a relic of English Law French and has no meaningful presence in American, Scottish, or other common law traditions as a recognized term. Its relevance is confined to historical English legal materials.