Definition
The Latin plural form of *institutum*, used in medieval and early modern legal writing to denote the *Institutes* — specifically, the Institutes of Justinian (*Institutiones Justiniani*), the introductory textbook of Roman law commissioned by the Emperor Justinian I and promulgated in 533 CE as part of the *Corpus Juris Civilis*. The term appears in this sense in Fleta and in Justinian's own Novels, where the Latino-Greek form Ινστιτούτοις carries the same referent. When encountered in Latin legal texts, *instituta* is a shorthand citation signal pointing to this foundational Roman law compilation, not a freestanding legal concept.
Why It Matters in Research
Researchers working in medieval English legal texts, Romano-canonical sources, or early modern civil law treatises will encounter *instituta* as a citation shorthand rather than as a substantive legal term. Its primary research significance is identificatory: recognizing that a reference to *instituta* directs the reader to Justinian's Institutes, one of the four components of the Corpus Juris Civilis alongside the Digest (*Pandectae*), the Code (*Codex*), and the Novels (*Novellae*).
The specific passage Burrill cites — Fleta, lib. 3, c. 3, § 12 — is important context. Fleta is a late thirteenth-century English legal treatise heavily influenced by Roman and canon law, and its invocation of *instituta* reflects the broader civilian learning that permeated English legal education in that period. A researcher encountering *instituta* in a Fleta passage should not expect a purely English common-law source; the passage likely draws on or paraphrases Roman doctrine.
The cross-reference to Justinian's Novels (Nov. 18, c. 9; Nov. 21, c. 1) is also notable. The Novels are among the less-read portions of the Corpus Juris Civilis in common research contexts, and finding *instituta* there in its Latino-Greek hybrid form signals that even Justinian's own legislative drafters used the term as a self-referential citation back to the Institutes. This matters for dating and source-tracing: when a Novel cites *instituta*, it is Justinian's court citing the Institutes as authoritative teaching text, not merely a title.
For researchers in comparative legal history or civil law jurisdictions, *instituta* as a term-of-art also serves as a useful marker of civilian influence in any text where it appears. Its presence almost always signals that the author has direct or indirect access to the Roman law tradition rather than relying solely on local customary sources.
Historical Dictionary Support
Burrill's entry is brief but precise. He correctly identifies *instituta* as the Latin equivalent of "Institutes," specifically Justinian's, and anchors the usage in two concrete textual locations: Fleta and Justinian's Novels. The entry does not attempt to define *instituta* as a concept independent of its source-text referent, which is the correct approach — the term is a name, not a doctrine.
What Burrill does not address is the broader genus of *instituta* as a category of Roman legal writing. Before Justinian, there were other *institutiones* — most notably Gaius's *Institutiones* (second century CE), which served as the primary model for Justinian's version. Researchers who encounter *instituta* in sources predating Justinian, or in medieval glosses on Gaius rather than on Justinian, should not assume the reference is to the Justinianic text. Burrill's entry implicitly assumes the Justinianic context, which covers the overwhelming majority of medieval and early modern usage, but the ambiguity is worth flagging.
No other source dictionaries in the current corpus address *instituta* directly. The term falls within the specialist vocabulary of Roman law rather than common-law practice, which accounts for its sparse treatment in English legal dictionaries generally.
Jurisdictional Note
The term has no operative significance in modern common-law jurisdictions. It retains relevance in civil law jurisdictions and in historical scholarship wherever the Corpus Juris Civilis formed the basis of legal education or legislation, including Scotland, Louisiana, Quebec, and the European civilian tradition broadly.
Encyclopedia Cross-Reference
Law Mind Encyclopedia — Corpus Juris Civilis
Law Mind Encyclopedia — Justinian's Institutes
Law Mind Encyclopedia — Fleta (Treatise)