Definition
A former recovery; an adjudication or recovery obtained in a prior action. The term denotes that a judgment or recovery was previously obtained in an earlier proceeding — typically invoked as a bar to re-litigation of the same claim or as evidence of a prior adjudication between the same parties.
The term is an archaic shorthand, drawn from the Latin "mero" (pure, absolute) combined with "recovery" in its historic common-law sense of obtaining judgment. It appears most frequently in pleading contexts where a party raises a prior judgment as a defense, and is closely associated with the doctrine of res judicata.
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Common Confusion
MER RECOVERY vs. RES JUDICATA: Both concepts address the preclusive effect of a prior judgment, and both Black's editions immediately cross-reference res judicata after defining mer recovery. The terms are not synonymous, however. Mer recovery refers specifically to the prior adjudication or judgment itself — the event or fact of having recovered in a former action. Res judicata is the legal doctrine that gives that prior recovery its preclusive force. A mer recovery is the predicate fact; res judicata is the rule of law that attaches to it.
MER RECOVERY vs. FORMER RECOVERY: These phrases are functionally equivalent and are used interchangeably in historical sources. "Former recovery" is the more common modern phrasing; "mer recovery" is the older, more compressed form that fell out of active use.
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Why It Matters in Research
**Archaic vocabulary alert.** "Mer recovery" is not a term in active contemporary use. Researchers encountering it in historical pleadings, treatises, or digests — particularly from the 18th and 19th centuries — should understand it as equivalent to "former recovery" or a prior judgment raised as a defense. The term does not appear in modern procedural codes or case law with any frequency.
**Truncated source entries.** Both Black's editions trail off mid-cross-reference ("See RES JUDI-" / "See Res JupI-"), indicating the full entry pointed to the res judicata entry for substantive doctrine. Researchers who encounter mer recovery in a historical index or digest should pivot immediately to res judicata materials for the operative legal analysis.
**Pleading context.** Historically, a "plea of mer recovery" or "former recovery" was a specific common-law pleading form — a special plea in bar — used to defeat a second action on the same claim. Understanding this pleading posture is important when reading older reported cases where such pleas appear on the record.
**No modern procedural analog by name.** Modern civil procedure (under rules-based systems like the Federal Rules) subsumes this defense under affirmative defenses of res judicata or claim preclusion. The term "mer recovery" will not appear in modern practice materials, but its function survives entirely intact under different vocabulary.
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Historical Dictionary Support
Both Black's editions are in complete agreement: a mer recovery is an adjudication or recovery in a former action. Neither edition offers elaboration beyond that single sentence before cross-referencing res judicata. The truncation of the cross-reference in both editions (an apparent printing artifact in digitized versions) does not affect the substantive meaning.
The brevity of the entry in both editions reflects the term's role as a vocabulary placeholder rather than a concept requiring independent doctrinal treatment. Black's treats it as a definitional gateway to res judicata, not as a freestanding doctrine. Researchers should treat it the same way.
No additional historical dictionary sources in the Law Mind corpus (Bouvier's, Burrill, Wharton) carry a discrete entry for this term, suggesting it was understood as sufficiently obvious — or sufficiently derived from "former recovery" — to require no independent treatment beyond Black's brief note.
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