Definition
In Roman law, supellex denotes household furniture and domestic goods — the movable furnishings of a home considered as a distinct category of property. The term describes items used for domestic purposes within a household, as distinguished from clothing, provisions, tools of trade, or other categories of movable property. Roman jurists devoted considerable attention to defining what fell within supellex because the classification determined how property passed under wills, legacies, and intestate succession when a testator or statute made disposition of household goods as a class.
Why It Matters in Research
Researchers encountering supellex will most likely find it in discussions of Roman private law, particularly in materials concerning legacies and succession. The practical stakes were significant: Roman law recognized that a legacy of supellex did not automatically include clothing, books, silver plate, or provisions, and jurists debated the precise boundaries extensively. Digest 33.10 is the locus classicus — an entire title dedicated to resolving what items qualified as supellex and what did not.
For Law Mind corpus researchers, the term is almost exclusively a Roman law term and will appear in English-language legal sources primarily as an untranslated Latin term in treatises on civil law, Roman law commentaries, and works on the history of property law. It is not a term of art in common law practice and will not appear in American or English case law in any operative sense. If you encounter supellex in an American or English source, it is almost certainly in a scholarly or comparative law context, not a pleading or instrument.
The absence of a definition in the first edition of Black's Law Dictionary (which lists the term but provides no substantive content) while the second edition supplies it is itself a small research note: the entry was fleshed out editorially between editions, likely drawing directly on Burrill's formulation and the Digest citation both dictionaries share.
Historical Dictionary Support
Black's (2nd Ed.) and Burrill's are in close agreement: both define supellex as "household furniture" and both cite Digest 33.10 as authority. The alignment is tight enough to suggest common sourcing from the same Roman law tradition rather than independent analysis. Neither dictionary attempts to elaborate on the classification debates that occupy Digest 33.10 itself — debates over whether specific items like lamps, beds, mirrors, and carriages fell within or outside the term. For a researcher needing more than the bare definition, neither dictionary source is sufficient; the Digest title itself, or secondary works on Roman private law (such as those of Savigny or Gaius's Institutes as annotated by later civilian scholars), will be necessary.
The first edition of Black's is notably unhelpful, providing only the language identification "Lat. In Roman law." without a substantive definition — a reminder that early editions of Black's treated some Roman law terms as placeholders rather than fully developed entries.
Jurisdictional Note
Supellex is a term of Roman civil law with no operative role in common law jurisdictions. It may appear in Louisiana, Quebec, or other mixed civil law jurisdictions in historical scholarship, but it does not function as a live legal term in any modern American jurisdiction.