Definition
A term appearing in early legal sources with two distinct meanings drawn from medieval Latin usage: (1) a small sword or dagger; and (2) a type of sedge plant. Neither meaning carries active legal significance in modern law. The term surfaces almost exclusively in historical legal texts, particularly in citations to Matthew Paris (Mat. Paris), the thirteenth-century English chronicler whose works were occasionally invoked in medieval and early modern legal and quasi-legal contexts. For modern researchers, gladiolus functions as a lexical artifact — a term whose presence in a legal source signals the document's age and Latin register rather than any operative legal concept.
Common Language
Modern common usage (Wiktionary): A flowering plant of the genus Gladiolus, with sword-shaped leaves and showy flowers on spikes; also, the center portion of the sternum.
Historical common usage (Webster's 1913): A genus of bulbous plants with gladiate (sword-shaped) leaves, cultivated for their ornamental flowers; also called corn flag or sword lily. Separately, the mesosternum — the middle segment of the breastbone in certain animals.
The gap here runs in an unusual direction. Common usage preserves the botanical and anatomical meanings. The legal usage, by contrast, reaches back to the weapon sense — the "little sword" — which has largely dropped from ordinary English. A researcher encountering gladiolus in a legal source should not assume the botanical plant; the legal meaning is almost certainly the sword or dagger, consistent with the medieval Latin gladius root and the weapons-adjacent vocabulary of historical legal Latin.
Why It Matters in Research
Researchers working in medieval English law, ecclesiastical records, or chronicles incorporated into legal argument will occasionally encounter this term. Its significance is primarily paleographic and contextual: gladiolus appears in sources that blur the line between chronicle, legal record, and administrative text — a feature of medieval English documentary practice that creates real classification challenges for corpus researchers.
The citation to Mat. Paris in both Black's editions is the key navigational signal. Matthew Paris's Chronica Majora and Historia Anglorum were consulted by early legal writers and antiquarians as quasi-authoritative sources on English custom and historical fact. When Black's cites Mat. Paris, it is drawing on this antiquarian tradition rather than on a court report or statute. Researchers should treat such citations as windows into how nineteenth-century legal lexicographers sourced historical terms — often reaching directly to chronicle literature rather than to case law.
No research trap is more common with archaic weapon terms than false modernization: do not read gladiolus in a historical legal text as referring to the flower. The botanical genus was named for its sword-shaped leaves, but that naming postdates the legal usage by centuries. The legal term belongs to the gladius family — sword, blade, dagger — and should be read accordingly.
There is no modern legal doctrine, cause of action, or statutory framework that turns on this term. Its value in the Law Mind corpus is entirely historical and philological.
Historical Dictionary Support
Black's Law Dictionary (1st and 2nd editions) give identical entries: "A little sword or dagger; a kind of sedge. Mat. Paris." The duplication without revision across editions suggests that Black's editors found no new authority to add and carried the entry forward as inherited. This is a recognizable pattern in Black's treatment of archaic Latin terms — many were imported wholesale from earlier glossaries and legal dictionaries, particularly from sources in the civilian and canon law traditions, without independent verification.
The dual meaning — weapon and plant — is not as contradictory as it appears. Both senses derive from gladius (sword) and were applied by analogy: the sedge plant has long, narrow, blade-like leaves, making it a natural candidate for the same root. Medieval Latin freely applied weapon metaphors to botanical forms. Historical dictionaries do not resolve which meaning governed in any particular legal context; researchers must rely on surrounding text.
What historical sources miss: neither Black's edition provides the documentary context in which gladiolus appeared as a legal term of art, nor do they clarify whether the weapon sense or the plant sense was operative in the Mat. Paris passages cited. A researcher wanting to verify the citation must go directly to Matthew Paris.