Definition
An Anglo-Latin term from old English law meaning restraint, detainment, or the withholding of something. The term appears in historical legal records to describe the act of keeping back — whether a person, property, or entitlement — from one who would otherwise be entitled to it. It is not a term of modern practice and survives only in historical legal materials and antiquarian legal scholarship.
Common Confusion
The 2nd edition of Black's Law Dictionary pairs the entry for RETENEMENTUM with a separate passage on RETENTION as understood in Scots law — describing a species of lien entitling a possessor to hold a chattel until a claim is satisfied. These are distinct concepts. Retenementum is a term of old English law describing the act or fact of withholding; retention in Scots law is a substantive property right analogous to a possessory lien. Researchers encountering either term in historical sources should not assume they carry the same legal content, and should confirm the jurisdiction and legal system of the source before drawing equivalences.
Why It Matters in Research
Structural pattern: straightforward single-meaning, heavily historical.
Researchers are most likely to encounter retenementum in medieval and early modern English legal records — writs, plea rolls, and Year Book materials — where Latin remained the operative language of pleading and record-keeping. The term functioned descriptively rather than as a term of art with formally defined legal elements, so its meaning must be read from context. It could describe the withholding of land, goods, or a person (as in unlawful detention), and the nature of the alleged wrong would shape how the term was used in any given document.
Two research traps apply. First, because the term overlaps semantically with multiple distinct legal wrongs — unlawful detention of persons, withholding of land or rent, refusal to deliver chattels — researchers should not assume a fixed procedural home for the term. The appropriate writ or action would have depended on what was being withheld and from whom. Second, the 2nd edition of Black's conflates this entry with the Scots law doctrine of retention, which is a materially different concept. Researchers working across English and Scots legal sources should treat these as separate research threads.
The term has no modern statutory or common law life. It will not appear in post-Judicature Act materials in any operative sense. Its research value is primarily interpretive: understanding what it meant helps decode the nature of the claim or wrong described in a historical record.
Historical Dictionary Support
All four source dictionaries agree on the core meaning: detaining, withholding, or keeping back. Black's (1st ed.) renders it as "restraint; detainment; withholding." Rapalje & Lawrence and Bouvier both track a nearly identical formulation — "detaining, withholding, or keeping back" — and both cite Cowell (John Cowell's Interpreter, 1607) as authority, which is the expected source for this class of Anglo-Latin legal terminology.
The 2nd edition of Black's reproduces the same definition but appends the unrelated Scots law entry on retention, creating a textual proximity that may mislead researchers into treating the concepts as related. This appears to be an artifact of the dictionary's layout rather than an editorial judgment about conceptual connection.
None of the source dictionaries provide illustrative usage from writs or plea rolls, nor do they situate the term within a specific procedural context. Researchers seeking to understand how retenementum was actually deployed in historical practice will need to go beyond dictionary sources to primary legal records or to antiquarian works such as Cowell's Interpreter or Spelman's Glossarium.
Jurisdictional Note
This term belongs to the tradition of old English law and Anglo-Latin pleading. It has no operative meaning in modern English, American, or Scots law. The Scots law doctrine of retention — a possessory lien concept — shares a Latin root and some semantic overlap but is a distinct legal institution and should not be conflated with this term.