Definition
A purely relative adjective used throughout the law to distinguish a thing by its date, origin, or character from another thing of the same kind or class. "New" carries no fixed or absolute meaning in legal usage; its significance depends entirely on the context in which it appears and the thing with which it is being contrasted.
In most legal compounds and phrases, "new" signals one of two distinct ideas:
1. Recent or fresh origin — contrasting the timing of something (a pleading, a trial, a party, an agreement) with a prior version or predecessor of the same type. Examples include new trial, new promise, new assignment, and new matter.
2. Previously unknown or not existing before — contrasting the existence of something with a prior state of affairs. This sense dominates patent law, where "new" is a term of art requiring that an invention not merely be novel in commerce but genuinely different in kind or quality from what came before.
Common Language
Modern common usage (Wiktionary): To make new; to recreate; to renew. Also used as a general adjective meaning recently made, acquired, or not previously known.
Historical common usage (Webster's 1913): Having existed or been made but a short time; of late origin; recent; fresh; modern — opposed to old. Also: not before seen or known, although existing before; lately manifested.
The ordinary meaning of "new" tracks closely enough with most legal uses that no dramatic gap exists for most readers. The critical divergence appears in patent law: an article may be "new" in commerce simply because its form has changed, but it is not "new" in the patent sense unless it possesses properties or functions not achievable through mere mechanical rearrangement of existing elements. Researchers who read "new" in a patent context through the ordinary lens will systematically misread the standard.
Common Confusion
"New" in patent law is frequently conflated with novelty in commerce. A product that is new to a market — never previously sold there — is not necessarily patentable as new. Conversely, a product already in wide commerce may still be "new" within the meaning of patent law if a fresh combination of elements produces genuinely different properties. Bouvier's and Anderson's both flag this distinction explicitly. Researchers working with nineteenth-century patent cases should read "new" with the patent-law gloss in mind, not the commercial one.
Why It Matters in Research
"New" is one of the most pervasive qualifying terms in legal literature, appearing in hundreds of compound phrases across virtually every subject area. Its research value is almost always context-dependent — the word alone is nearly meaningless without identifying what it modifies.
Several traps await researchers in historical sources:
First, patent law meaning versus commercial meaning diverged early and often generated confused opinions in nineteenth-century cases. Courts in that era did not always distinguish cleanly between the two senses, and historical headnotes may use "new" loosely. Bouvier's (citing 14 Pet. 364) recognized this tension, but many contemporaneous reporters did not.
Second, procedural compounds like "new trial," "new assignment," and "new matter" each carry their own technical requirements. Finding "new" in a historical pleading or procedural context requires identifying the specific compound term rather than treating "new" as a standalone qualifier.
Third, in constitutional and public law contexts — admission of new states, new source permitting under environmental statutes — "new" has been further defined by statute and regulation in ways that override common-law usage entirely. A researcher reading "new source" in an environmental regulatory context must consult the statutory definition, not the common-law baseline.
The Law Mind corpus contains significant concentrations of "new" as a qualifying term in trusts and estates (new trust, decanting), environmental law (new source review), and constitutional law (new states). Researchers should use "new" as a secondary search term paired with the substantive noun, not as a primary search term.
Historical Dictionary Support
Black's 2nd Edition correctly identifies "new" as a purely relative term used to contrast date, origin, or character — the most useful and accurate summary across the shelf sources. Anderson's and Bouvier's agree on the commercial/patent distinction, though Bouvier's develops it more fully. Rapalje & Lawrence and Burrill's do not contribute meaningfully to the definition of "new" itself; their entries for this headword appear to be cross-references or incidental mentions rather than substantive definitions.
None of the historical dictionaries attempts a comprehensive treatment of the procedural compounds (new trial, new assignment, new matter) under this headword — those are treated separately in each source. Researchers should not expect to find doctrine on "new trial" by looking under "new" in these dictionaries; the compound term must be searched directly.
Encyclopedia Cross-Reference
New Source Review, PSD, and Nonattainment Permitting — The Law Mind Environmental & Energy Law Encyclopedia (for "new" as a statutory term of art in environmental permitting)
Admission of New States and Federal Property Power — The Law Mind Constitutional Law Encyclopedia (for "new" in the context of Article IV state admission)
Decanting — Trustee Power to Distribute to a New Trust — The Law Mind Trusts, Estates & Probate Encyclopedia (for "new trust" in the context of fiduciary modification)