Definition
To misbehave, do wrong, or act improperly; also, to make a mistake or err. MESPRENDRE is a Law French verb appearing in early English legal texts with two related but distinct senses: (1) moral or legal misbehavior, misconduct, or offense; and (2) the commission of an error or mistake. The noun form, MESPRENDER or MESPRISE (also rendered MISPRISION in anglicized form), carried these same dual meanings into doctrinal usage.
The term does not describe a specific cause of action or defined offense but rather functions as a general characterization of wrongful or erroneous conduct, depending on context.
Common Confusion
MESPRENDRE should not be conflated with MISPRISION as it later developed in English common law. While MISPRISION derives from the same root and preserves the sense of wrongdoing or negligent omission, it acquired specific technical meanings — most notably misprision of felony and misprision of treason — that are far more narrow and defined than the broad, general usage of MESPRENDRE in its Law French context. A researcher encountering MESPRENDRE in a medieval or early modern source cannot assume it carries the technical weight of misprision as understood in later common law doctrine.
Why It Matters in Research
MESPRENDRE is primarily a term of historical and linguistic significance rather than operative legal doctrine. Researchers will encounter it almost exclusively in Law French sources — Year Books, early plea rolls, and texts drawing on the Norman-French vocabulary of the medieval English legal tradition. Its value to a corpus researcher lies chiefly in two areas.
First, tracing the semantic path from MESPRENDRE to MESPRISE to MISPRISION illuminates how a general term of moral and legal censure narrowed over time into specific statutory and common law offenses. Sources from different periods will use these related forms with different degrees of technical precision, and conflating them distorts the historical record.
Second, the dual meaning — misconduct on one hand, mistake or error on the other — creates interpretive risk in close reading. A passage using MESPRENDRE or its cognates may be describing culpable wrongdoing or merely a procedural or factual error, and the surrounding context must govern the reading. Burrill flags this ambiguity directly, and researchers should carry that caution into any source where the term appears.
The term is unlikely to appear in modern legal materials. Its research utility is confined to historical legal texts, legal French glossaries, and scholarship on the evolution of English common law vocabulary.
Historical Dictionary Support
Burrill's Law Dictionary, citing Kelham's dictionary of Norman French, gives MESPRENDRE two meanings: "to misbehave; to do amiss; to offend" and "to mistake," noting the latter as the word's "literal meaning." This is a rare instance where Burrill acknowledges that the literal sense and the juridical sense diverge slightly in emphasis — the literal meaning pointing toward error, the legal usage often pointing toward culpable conduct.
Burrill's treatment is brief and accurate as far as it goes, but it does not trace the relationship between MESPRENDRE and MISPRISION, leaving the researcher to work out that connection independently. Kelham's Normand French Dictionary remains the primary specialist reference for this vocabulary. Neither Bouvier nor Black's Law Dictionary (early editions) give MESPRENDRE a standalone entry, treating the concept instead through MISPRISION and its variants, which reinforces the observation that the anglicized forms displaced the Law French original relatively early.