Definition
A Latin term meaning "things expressed" or "words expressly stated." In legal usage, *expressa* refers to the explicitly stated terms, conditions, or elements of a legal instrument, contract, or enactment — as distinguished from those that are implied, presumed, or left unstated. The term appears most frequently as part of the maxim *expressa nocent, non expressa non nocent*: things expressed may be prejudicial; things not expressed are not. The principle captures a recurring danger in legal drafting — that the act of articulating something affirmatively may create limitations, admissions, or liabilities that silence would have avoided.
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Common Confusion
EXPRESSA is sometimes loosely treated as a synonym for *expressis verbis* (in express words) or confused with *expressio unius est exclusio alterius* (the expression of one thing excludes others). These are related but distinct. *Expressa* describes the quality of being stated rather than implied. *Expressis verbis* emphasizes the explicitness of the verbal form. *Expressio unius* is a canon of construction that draws inferences from selective expression. Researchers should treat these as a connected family of concepts, not interchangeable labels.
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Why It Matters in Research
The operative significance of *expressa* in historical legal materials lies in its relationship to drafting risk. When a party — whether a testator, contracting party, or legislator — chose to express something that might otherwise have been left to implication or default rule, that choice could cut against them. The maxim *expressa nocent* was applied in contexts ranging from wills and conveyances to statutory interpretation, meaning the same word could surface in a contracts dispute, a probate proceeding, or a question of legislative intent.
Researchers working in 19th-century or earlier materials should watch for this term embedded within maxim-heavy argument. It rarely appears as a standalone heading; more often it anchors a chain of reasoning built on several related Latin principles. Burrill cites the Digest at 35.1.52 and 50.17.195, which anchors the concept firmly in Roman civil law tradition — so researchers tracing the intellectual genealogy of a construction canon should follow the civil law thread, not assume common law origins.
The practical trap in corpus research: *expressa* looks like a passive participle and may be easy to scan past in dense Latin passages. In context, however, it often marks the pivot point of an argument about whether explicit language helped or hurt the party that used it. That pivot is substantively important in both interpretive and drafting analysis.
Jurisdictional variation is less salient here than in many terms, because *expressa* functions primarily as a maxim-anchor rather than a defined legal standard with statutory or doctrinal instantiation in any particular jurisdiction.
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Historical Dictionary Support
Burrill's entry is compact but substantively complete for its function. He correctly situates *expressa* as the subject-noun of the maxim *expressa nocent, non expressa non nocent*, gives the Digest citations, and cross-references Calvin's Lexicon — the standard 17th-century civilian reference. His gloss ("things expressed may be prejudicial") is appropriately hedged; the bracketed "may be" signals that the maxim is not an absolute rule but a presumption that context can displace.
What Burrill does not do is distinguish the several different doctrinal contexts in which the principle was invoked: testamentary construction (where unnecessary recitals could limit a broader bequest), contract drafting (where express warranties or conditions could foreclose implied ones), and statutory interpretation (where express enumeration risked the *expressio unius* inference). Researchers should not assume the maxim operated identically across these domains. Later treatise writers developed these distinctions more fully; Burrill's entry is a starting point, not a complete account.
No other source dictionaries are available for this term in the present corpus. The Digest citations Burrill provides remain the primary classical authority.
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