Definition
A solemn binding upon oath; the act of charging another person under oath or by invocation of something sacred to speak the truth, perform an act, or make a declaration. In legal contexts, adjuration refers specifically to the formal calling of a person to answer or swear by something held inviolable — historically God, a holy object, or the penalties of a curse — and carries the full moral and legal weight of an oath. It appears most often in historical proceedings as a precursor to or substitute for conventional oath administration, and in ecclesiastical and common law practice as a method of compelling testimony or confession.
Common Language
Modern common usage (Wiktionary): A grave warning; a solemn oath.
Historical common usage (Webster's 1913): "The act of adjuring; a solemn charging on oath, or under the penalty of a curse; an earnest appeal." Webster's illustrates the term with religious and rhetorical examples, noting both the form of oath and the act of appeal.
The common meaning captures the solemnity of adjuration but misses the operative legal dimension: in law, adjuration is not merely earnest appeal or warning — it is a formal act with procedural function, binding the person adjured in much the same way as an administered oath. The ordinary usage suggests persuasion; the legal usage suggests compulsion under a recognized formal authority.
Common Confusion
Adjuration is sometimes treated as synonymous with an oath or affirmation, but the terms are distinct. An oath is a personal declaration made by the swearer. An adjuration is directed outward — it charges or commands another person to speak or act truthfully under the invocation of a binding authority. The adjurer is not the one swearing; the adjured is the one being bound. Researchers should also distinguish adjuration from imprecation (a calling down of a curse, which is the threatened penalty within an adjuration) and from exorcism, with which adjuration overlaps in ecclesiastical but not legal usage.
Why It Matters in Research
Adjuration is a term researchers will encounter primarily in older English and ecclesiastical legal sources, and its practical significance in modern legal doctrine is minimal. The research traps are historical. First, the term appears in early common law and ecclesiastical court records in connection with compelling testimony before formal oath procedures were standardized — understanding adjuration clarifies what evidentiary weight those early proceedings claimed. Second, in colonial American and early republic sources, adjuration sometimes appears in statutory and constitutional debates about oath requirements for public office and testimony, where its theological freight was contested. Third, the uniformity of definition across all three source dictionaries — Black's (1st and 2nd editions) and Rapalje & Lawrence reproduce the identical phrase — signals that adjuration had settled into a technical term of art by the late nineteenth century, but one with limited active litigation history. Researchers should treat corpus appearances of the term as indicators of formal or ceremonial legal contexts, ecclesiastical proceedings, or early modern sources rather than live doctrinal disputes.
Historical Dictionary Support
The historical dictionaries present complete agreement: Black's Law Dictionary (both editions) and Rapalje & Lawrence define adjuration identically as "a swearing or binding upon oath." This unanimity is itself informative — it suggests the term was not contested or evolving within the legal lexicon by the time these dictionaries were compiled, but had settled into a fixed, narrow meaning. None of the legal dictionaries engages the theological and rhetorical richness that Webster's 1913 captures, nor do they acknowledge the distinction between the adjurer and the adjured. The legal sources treat adjuration as a species of oath-taking without exploring its directional character (commanding another) or its historical roots in canonical and ecclesiastical procedure. Researchers relying solely on the legal dictionary tradition will get the core meaning but miss the procedural context that makes the term significant in pre-modern sources.
Jurisdictional Note
Adjuration has no significant active jurisdictional variation in modern American law. Its relevance is primarily historical and comparative, particularly in English ecclesiastical law and early common law proceedings. Researchers working in canon law traditions or comparative legal history should consult ecclesiastical sources separately.