Definition
A Roman civil law interdict for retaining possession of a movable thing. Where a dispute arose over who possessed a movable object, the praetor could issue the utrubi to protect the possession of whichever party had held the object for the greater part of the preceding year. The interdict did not resolve ownership but preserved the status of possession pending final adjudication of the underlying right.
The utrubi functioned as the movable-property counterpart to the uti possidetis, which served the same protective purpose for immovable property (land and structures). Together, the two interdicts formed the Roman system of possessory protection: uti possidetis favored the party currently in possession of immovables; utrubi favored the party who had possessed movables for the longer period within the year.
In Scots law, the term was carried forward to describe an interdict continuing the colorable possession of a bona fide holder of movable property until a contested right was finally settled, closely mirroring the civil law function and expressly distinguished from the uti possidetis remedy applicable to heritable (immovable) property.
Common Confusion
Researchers frequently encounter utrubi and uti possidetis treated as interchangeable. They are not. Both are retaining interdicts — they protect existing possession rather than recovering lost possession — but uti possidetis governs immovables and utrubi governs movables. The distinction matters when tracing how Roman possessory law was received into Scots law and into civilian-influenced jurisdictions: the two interdicts traveled together but operated on different subject matter. Confusing them will produce errors in understanding both Roman sources and Scots procedure.
Why It Matters in Research
Structural pattern: historical evolution with narrow single meaning. The term is primarily of value to researchers working in Roman law, comparative private law, or Scots law history.
Researchers should note several navigational points:
First, the term appears in Latin sources across a wide chronological range. The primary texts are the Institutes of Justinian (4.15.4) and the Digest (43.31). Secondary Roman-law treatises — Heineccius, Mackeldey — synthesize these sources and are the versions most likely encountered in 19th-century American and Scottish legal writing. The dictionary entries drawn from Mackeldey (Mackeld. Rom. Law and 1 Mackeld. Civ. Law) are references to the same author's work in different translations; researchers should not treat these as independent authorities.
Second, the Scots law usage found in Bouvier and Bell's Dictionary represents a specific reception context. Scots law preserved the civilian interdict framework more fully than English common law, which largely displaced possessory interdicts with different procedural mechanisms. A researcher tracing utrubi into Anglo-American sources outside Scotland will find the trail ends quickly; the term has no independent common law analogue.
Third, the literal Latin meaning — "with whichever" or "with which of the two" — signals the interdict's operative test: possession was awarded to whichever of two competing parties had held the thing longer. Burrill preserves the Greek parallel (παρ ὁποτέρω) for researchers working with Byzantine or Greek-language civil law materials.
Fourth, the interdict is a retaining interdict (interdicta retinendae possessionis), not a recovering interdict (recuperandae possessionis). This classification determines where utrubi fits within taxonomies of Roman interdicts and affects how sources index it. Look for it under possessory interdicts, retaining interdicts, and movable property — not under restitutory or prohibitory categories.
Historical Dictionary Support
Black's, Bouvier's, and Burrill's converge on the core definition without meaningful disagreement. All three identify utrubi as a civil law retaining interdict for movables, all three contrast it with uti possidetis for immovables, and all three ground it in the Institutes 4.15.4.
Burrill is the most technically detailed, preserving the Latin etymology ("with whichever"), the Greek equivalent, and citations to the Digest (43.31) and to Heineccius in addition to Mackeldey. This makes Burrill the more useful starting point for researchers needing to locate primary and secondary Roman law sources.
Bouvier's entry is the most compressed and focuses almost entirely on the Scots law reception, citing Bell's Dictionary for the proposition that utrubi in Scotland continued colorable possession of a bona fide holder pending final settlement. This framing is consistent with Black's but narrows the entry to Scots application. Researchers using Bouvier in an American context should be aware that his treatment reflects Scots doctrine rather than any American usage.
None of the three historical dictionaries addresses whether the interdict survived in any form in civilian-influenced American jurisdictions (Louisiana, for example). Absence of coverage here is informative: utrubi did not develop an independent American legal life and appears in domestic legal writing primarily in its historical and comparative capacity.
Jurisdictional Note
Utrubi has practical doctrinal relevance primarily in Scots law, where it was incorporated into the interdict framework governing movable property disputes. In civil law jurisdictions generally, the concept was absorbed into possessory action doctrine without necessarily retaining the Roman label. Common law jurisdictions, including England and the American states, did not adopt the interdict and the term appears in those sources only in treatise discussions of Roman law.