Definition
A Law French term with two related meanings that appear in early common law records and pleadings: (1) to transfer or convey, as in the passing of property or rights from one party to another; and (2) to leave, relinquish, or yield up a thing, often in the context of surrendering possession or abandoning a claim. The term appears in medieval English legal instruments and court rolls written wholly or partly in Law French, and is the functional ancestor of modern conveyancing vocabulary centered on delivery and relinquishment.
Common Language
Modern common usage (Wiktionary): The modern French verb laisser means to let, to allow, to leave, or to let go of something — a broad verb of permission and release still in active use in contemporary French.
Historical common usage (Webster's 1913): Webster's 1913 does not treat laisser as an English word, consistent with its status as a borrowing retained only in legal and archaic French contexts by the nineteenth century.
Editorial note: The ordinary French sense emphasizes permission — letting something happen or letting something remain. The legal sense in Anglo-Norman practice was more transactional and purposive: laisser in a legal instrument typically signified an affirmative act of transfer or surrender, not mere passive allowance. A researcher encountering laisser in a medieval plea roll or deed should read it as operative conveyancing language, not as a neutral permission verb.
Common Confusion
Laisser is occasionally conflated with laisser-faire, the economic and political doctrine of non-interference, which draws on the permissive sense of the French verb. The two usages share an etymological root but diverge completely in legal function: laisser in legal instruments is an act of conveyance or relinquishment, whereas laisser-faire is a modern political concept with no operative role in property or pleading law. Researchers should also distinguish laisser from the related Law French terms laissez (imperative form, appearing in phrases like laissez passer) and the English law term lease, which derives from the same root through a separate phonetic path.
Why It Matters in Research
Laisser surfaces primarily in Law French pleadings, conveyancing instruments, and court rolls from the Norman period through roughly the fifteenth century, when Law French was progressively displaced by English in legal proceedings. Researchers working in early common law sources — particularly Year Books, plea rolls, or medieval deeds held in archive collections — will encounter the term embedded in formulaic transfer language where its precise operative sense matters for understanding what legal act is being recorded.
Two research traps deserve attention. First, the dual meaning (transfer versus leave/relinquish) is not always disambiguated by context: a party might laisser property in the sense of conveying it forward to a grantee, or in the sense of abandoning it entirely, and the surrounding instrument must be read carefully to distinguish these outcomes. Second, because Law French vocabulary was never fully standardized in spelling, laisser appears in variant forms (lesser, laiser, lessier) across manuscript sources. Word-search strategies in digitized corpus collections should account for these orthographic variations, as a search on the canonical spelling alone will miss a significant portion of occurrences.
Laisser connects in the Law Mind corpus to the broader cluster of Law French conveyancing terms and to the history of lease as a legal concept, since the English word lease traces through Old French laissier along a parallel development path.
Historical Dictionary Support
Burrill's Law Dictionary is the principal historical source for this term in the Anglo-American tradition. Burrill gives a compact dual definition — to transfer (citing Kelham's Norman French dictionary) and to leave (citing L. Fr. Dict.) — without extended commentary. This brevity is typical of how historical dictionaries treated Law French vocabulary: as reference anchors for practitioners encountering archaic terms in older authorities, rather than as subjects meriting doctrinal elaboration.
Kelham's Dictionary of the Norman or Old French Language (1779) is the underlying philological authority Burrill invokes, and researchers who need to trace the word further into manuscript sources should consult Kelham directly. No significant divergence exists among the historical sources on basic meaning; the term did not evolve doctrinally so much as it receded from use as Law French gave way to English legal drafting. What historical dictionaries uniformly omit is any guidance on the spelling variants that complicate corpus searching — a gap that modern researchers must address through paleographic and editorial scholarship on Law French texts.
Jurisdictional Note
Laisser is a term of historical English common law provenance and has no operative presence in modern statutory or case law in any common law jurisdiction. Its relevance is confined to historical legal research and to interpretive questions arising from medieval instruments that have continuing effect, such as certain land grants or trust instruments of great antiquity.