Definition
Latin: "Separately; severally." A civil law term used to describe a disposition, bequest, or legal obligation made to multiple parties individually rather than collectively. Where parties are named disjunctim, each receives or bears a distinct share in their own right, as opposed to conjunctim, where parties take or are bound jointly as a unified group.
The term appears principally in the law of testamentary substitution and legacy, where the manner in which legatees are named — jointly or severally — determines the nature and survivorship of their interests.
Common Confusion
DISJUNCTIM vs. CONJUNCTIM: These are paired opposites and the distinction is the entire point of the term. Conjunctim describes a joint disposition in which multiple parties are linked together, with survivorship implications flowing from that unity. Disjunctim describes separate, several dispositions to each named party. In Roman inheritance law, whether substitutes or legatees were named conjunctim or disjunctim governed whether a lapsed share passed to co-legatees or fell back into the estate. Researchers encountering one term without the other are reading half the analysis.
Why It Matters in Research
This is a narrow civil law term of art unlikely to appear in common law sources, and its appearance in a document is almost always a marker of Roman law influence — either a civilian jurisdiction, a treatise in the civil law tradition, or a learned discussion of testamentary substitution.
The primary navigational trap is treating disjunctim as mere stylistic Latin for "separately" without recognizing its technical function. In the context of Institutes 2.20.8 (the standard citation anchor in all three dictionary sources), the term has a precise operative meaning that determines how substitutionary legacies behave when a named legatee cannot or does not take. Getting the conjunctim/disjunctim distinction wrong means misreading the structure of the bequest entirely.
Researchers working in Louisiana, Quebec, South Africa, or Scots law — jurisdictions retaining civilian inheritance frameworks — are more likely to encounter this term in operative legal documents than researchers working in standard common law jurisdictions, where it appears almost exclusively in academic or treatise literature.
Within the Law Mind corpus, this term will surface most predictably in: (1) treatises on Roman law or civil law generally; (2) historical works on testamentary substitution and fideicommissa; (3) comparative succession law scholarship. It rarely appears in case law outside civilian jurisdictions.
Historical Dictionary Support
All three source dictionaries — Black's (1st and 2nd editions) and Burrill's — give substantively identical entries: "Separately; severally. The opposite of conjunctim." All three cite Institutes 2.20.8 as the textual authority. This uniformity signals a term with a settled, uncontested meaning, not one that evolved or was disputed across treatise writers.
Burrill adds the notation "Calvin, unsuitably" — a reference to Johannes Calvinus's Lexicon Juridicum, suggesting Calvinus either defined the term imprecisely or used it in a context Burrill considered technically off. This is a minor bibliographic flag, not a substantive dispute about meaning, but researchers consulting Calvinus on this term should approach that source with some caution.
The Latin dictionary entry confirms the adverbial form and traces it to the participle of disjungo ("to separate, disjoin"), consistent with the legal usage. No gap between etymological and legal meaning exists here.
What the historical dictionaries do not provide is any discussion of the downstream legal consequences of the conjunctim/disjunctim distinction — they define the word but do not explain the doctrine it operates within. For that analysis, researchers must consult primary Roman law sources (the Institutes and Digest) or civilian treatise literature directly.
Jurisdictional Note
Disjunctim is a term of Roman and civil law with no direct common law equivalent or common law application. It retains practical relevance in mixed and civilian jurisdictions (Louisiana, Quebec, Scotland, South Africa) where succession law preserves civilian doctrines of testamentary substitution. In purely common law jurisdictions it appears only in academic and historical legal literature.