Definition
A Latin term from Roman and civil law meaning to die or to depart from life. Used in legal instruments, statutes, and judicial texts to indicate the death of a person, particularly in the context of succession and inheritance. The term appears in standard civil law formulations such as intestatus decedit (he dies intestate) and decessit (he died), functioning as the operative verb signaling the event that triggers succession rights, the distribution of an estate, or the termination of a legal status.
Common Language
Modern common usage (Wiktionary): Not in general modern English use; survives only in learned or ecclesiastical contexts as a Latin borrowing.
Historical common usage (Webster's 1913): Not entered as an English word; treated as Latin.
The term has no meaningful common English counterpart to create confusion. It is pure civil law Latin, and researchers will encounter it exclusively in legal texts rather than in ordinary speech or writing.
Why It Matters in Research
Researchers working in Roman law, continental civil law, or early Anglo-American sources will encounter decedere and its cognates — decessit, decesserit, decessus — as the standard verbal markers of death in Latin legal instruments. Understanding the term is essential for parsing conditions in wills, inheritance rules triggered by survivorship, and rights that attach upon death.
Three navigational points matter for corpus work:
First, the participial and conjugated forms vary. Decessit (he died, past tense) and decesserit (if he shall have died, perfect subjunctive) appear in different juristic contexts and signal different legal postures — one stating a historical fact, the other framing a contingency. Conflating them can distort the reading of a conditional clause in a civil law text.
Second, Burrill's entry notes the truncation visible in some printed editions where decedere material runs directly into unrelated entries (the Decanus friborgi fragment appearing in the same typeset block). This is a compositor error in older dictionary printings, not a legal connection. Researchers using digitized versions of Burrill should be alert to this artifact, which can corrupt keyword searches or produce false associations between decedere and Saxon administrative terminology.
Third, researchers moving between civil law sources and early English common law texts will find that English law preferred its own vocabulary — die, depart, decease — while retaining the Latin decedere in formal pleading, ecclesiastical court records, and treatises with civilian influence. The cognate English noun decedent (one who has died) became standard in American probate law and statutes, forming the primary bridge between the Latin source term and modern legal usage.
Historical Dictionary Support
Burrill's Law Dictionary provides the essential entry: decedere means to depart from life, and the definition is anchored to the Institutes and Digest of Justinian — Inst. 3.1 (on succession ab intestato) and Dig. 2.8.4 and 4.8.26 (procedural and arbitration contexts). The references to Dig. 40.15.1.1 for decessit further confirm that the term appears across multiple titles of the Digest, not only in succession law.
Burrill also credits Brissonius (Barnabé Brisson, De Verborum Significatione, 1559), the standard civil law lexicon for Latin legal vocabulary, as a supporting authority — indicating that decedere was a recognized term of art in the civilian tradition well before English legal dictionaries began cataloguing it.
No English legal dictionaries of the common law tradition (Cowell, Blount, Jacob, Bouvier) give decedere a dedicated entry, reflecting the term's confinement to civil and ecclesiastical law sources in the English context. This gap means that researchers relying solely on English legal dictionaries will miss the term entirely and must consult civilian lexicographers or the Digest directly for authoritative usage.
Jurisdictional Note
Decedere is a term of Roman and civil law with no direct common law counterpart as a technical term. It appears in jurisdictions with civil law heritage — Louisiana, Quebec, and Latin American systems — as well as in historical ecclesiastical court records in England. Modern American probate law uses decedent (the noun derived from the same root) as the statutory term for a deceased person, but decedere itself does not appear in modern statutes or codes.