Definition
To purge an offense by oath. In medieval legal practice, acoredulitare referred to the formal act of clearing oneself of an accusation or offense through a sworn oath, typically administered in a court or ecclesiastical proceeding. The term appears in old Latin records of English law and belongs to a family of compurgation-related concepts in which the accused's own sworn denial, often supported by oath-helpers, served as a mechanism for legal exoneration.
Why It Matters in Research
This term will not appear in modern legal materials. Researchers encountering acoredulitare in historical records — particularly pre-common law English court rolls, manor court records, or ecclesiastical proceedings — should understand it as a procedural marker indicating that the accused sought to discharge liability through sworn denial rather than through trial by jury or ordeal.
The term is a signal that the underlying document likely predates or operates outside the emerging common law system of the 12th and 13th centuries. Its presence narrows the probable date range and institutional context of a source considerably. Researchers working in Anglo-Norman or early English ecclesiastical archives should distinguish this compurgatory act from other oath-based procedures; not all oaths in historical records serve the same function, and conflating them distorts the procedural picture.
Because the term surfaces only in Blount and Whishaw — both secondary glossarists of archaic legal Latin — primary source verification will be difficult. Researchers should treat any single occurrence of the term in a document as warranting close attention to surrounding procedural language to confirm that compurgation, rather than a mere evidentiary oath, is what is being described.
Historical Dictionary Support
Black's Law Dictionary (2nd Ed., Supplemental) defines acoredulitare as, in old records, "to purge an offense by oath," citing Blount and Whishaw. This is the only known historical dictionary entry for the term. Thomas Blount's Nomo-Lexicon (1670) and William Whishaw's New Law Dictionary (1829) both served as repositories for archaic and obsolete Latin legal terms drawn from medieval English records; neither work is a primary legal authority, but both preserve terminology that would otherwise be entirely inaccessible to modern researchers.
The historical dictionaries offer no elaboration on the procedural mechanics — whether oath-helpers were required, which courts employed the term, or how the act differed in practice from cognate procedures. This is a consistent limitation of both Blount and Whishaw: they preserve terms without procedural context. Researchers should supplement these sources with broader scholarship on compurgation and canonical purgation in medieval English law to reconstruct the full procedural setting.
No known modern legal dictionary carries this entry. Its survival in Black's 2nd Edition Supplemental reflects the early editions' broader commitment to preserving historical and civil law vocabulary that later editions progressively trimmed.
Jurisdictional Note
The term originates in English medieval legal practice and appears to have no independent development in continental or colonial American legal usage. Researchers working in Scottish, Irish, or Welsh historical records should not assume the term carries identical procedural meaning across those traditions without independent verification.