Definition
An archaic Law French term meaning "to lie" — used in early common law pleading and procedure to describe the posture or position of a claim, right, or action as it exists or "lies" at a given moment. The participial form, agisant, means "lying" in the same sense. The term appears in medieval legal records and Year Book-era texts to indicate that an action or remedy is available, operative, or properly situated — as in the idea that an action "lies" against a party.
Common Confusion
Agiser (to lie; procedural posture) should not be confused with agist or agistment (the taking in of livestock for pasture at a fee). The two terms have separate derivations and entirely unrelated legal meanings. Confusion arises in older indexes and abridgments where both terms may appear in proximity, and where early typesetters sometimes standardized variant spellings in ways that collapsed the distinction. Always verify by context.
Why It Matters in Research
Agiser is a relic of the Law French vocabulary that dominated English legal records from the Norman Conquest through the early modern period. Researchers working in medieval plea rolls, Year Books, or early printed abridgments will encounter this term and its participial form agisant primarily in procedural contexts — discussions of whether an action or writ "lies" in a given situation.
The critical trap for modern researchers is mistaking this term for the unrelated English legal term "agist" or "agistment" (the taking in of another's cattle for pasture), which has an entirely different legal significance. The phonetic and orthographic proximity of agiser to agistment has caused confusion in index entries and marginal glosses in historical manuscripts and early printed law books. When scanning older indexes or abridgments, verify context before assuming a pastoral or livestock meaning.
Because agiser functions as a verb of position or availability, it often appears embedded in compound phrases or procedural formulas rather than as a standalone term. Researchers relying on keyword searches in digitized historical corpora should also search for agisant and variant spellings (agist, giser) to capture the full range of appearances.
The term has no meaningful survival in modern legal usage; it was effectively displaced as Law French was abandoned in English courts by the eighteenth century. Its presence in a source is therefore itself a dating indicator — a document using agiser as a live legal term rather than a historical gloss almost certainly predates the Proceedings in Courts of Justice Act 1731, which mandated the use of English in legal proceedings.
Historical Dictionary Support
Burrill's Law Dictionary provides the core record for this term, glossing agiser as L. Fr. "to lie" and agisant as "lying," with a bare citation to "L. Fr. Dict." — a reference to legal French dictionaries of the period, likely including Rastell or Kelham's Dictionary of the Norman or Old French Language. Burrill's entry is characteristically spare, capturing the denotative meaning without procedural elaboration.
Historical legal dictionaries generally treat this class of Law French positional verbs as self-evident to a reader already trained in the old pleading forms. Modern researchers should not expect extended treatment in any single source. Kelham's work remains the most useful supplementary reference for Law French terms of this type, offering comparative glosses across variant spellings and usages. Tomlin's Law Dictionary and Jacob's Law Dictionary do not appear to carry independent entries for agiser, reflecting how quickly the term passed out of active use.
What the historical dictionaries collectively miss is any worked example showing agiser in context within an actual plea or Year Book passage — a gap researchers must fill by consulting the primary sources directly.