Definition
The act of taking a solemn oath. Dejeration refers to the formal swearing of an oath, particularly in a legal or ecclesiastical proceeding. The term denotes the act itself — the solemn affirmation by oath — rather than the content or subject matter of the oath sworn.
Common Language
Modern common usage (Wiktionary): "The act of swearing solemnly."
Historical common usage (Webster's 1913): "The act of swearing solemnly." Marked as obsolete.
Both the common and legal definitions track closely, but the distinction worth noting is register and context: in legal usage, dejeration implies a formal, procedurally recognized oath-taking with legal consequence, not merely emphatic personal swearing. The common definition captures the act; the legal definition implies the institutional setting that gives the act its force.
Common Confusion
The fragment appearing in one edition of Black's — referencing the benefit of creditors, an heir renouncing succession, and abandonment of insured property to underwriters — does not belong to dejeration. That language describes dereliction or abandonment concepts, and appears to be a printing or transcription artifact in the source. Researchers encountering that passage should treat it as a corrupted entry and not attribute those meanings to dejeration.
Why It Matters in Research
Dejeration is an archaic and rarely encountered term. Researchers are most likely to meet it in early modern legal texts, ecclesiastical records, or treatises predating the nineteenth century. Its practical significance lies in tracing the formal requirements for oath-taking in historical proceedings — an area where vocabulary shifted considerably across centuries as secular courts displaced ecclesiastical ones and statutory oath requirements evolved.
Because Webster's 1913 flags the word as obsolete and Wiktionary preserves it only as a historical curiosity, its appearance in a primary source is itself a dating signal: documents using dejeration without self-consciousness are likely pre-Victorian. Researchers working with colonial American records, English ecclesiastical court documents, or early chancery proceedings may encounter it in contexts where the precise form of an oath mattered to the validity of testimony or a pleading.
The corrupted Black's entry (referencing creditors, heirs, and underwriters) is a corpus trap. Any index or concordance that algorithmically associates those concepts with dejeration has imported an editorial error. Do not treat that passage as authority for any meaning beyond solemn oath-taking.
Historical Dictionary Support
Both editions of Black's agree on the core definition: a taking of a solemn oath. The first edition entry is clean and brief. The second edition entry reproduces the same formulation with comparable brevity, confirming that no expansion of meaning was intended between editions.
The extraneous text appearing in association with the Black's entry — concerning creditors, heirs, and underwriters — is almost certainly misattributed content from an adjacent entry (likely related to abandonment or dereliction) that became garbled in transcription or typesetting. Neither edition of Black's attributes those meanings to dejeration in any coherent editorial sense, and no other historical legal dictionary supports such an extension of the term.
Webster's 1913 and the legal dictionaries are in alignment on substance. The only divergence is that Webster's treats the term as obsolete by 1913, while Black's continued to include it as a working legal vocabulary entry — suggesting it retained residual utility in legal contexts even after falling from general English usage.
Jurisdictional Note
Dejeration has no meaningful jurisdictional variation in modern law because it is not a term of art in any current Anglo-American legal system. Its relevance is historical and comparative rather than jurisdictional.