Definition
To absolve, acquit, or discharge a person from legal liability or ecclesiastical censure. In legal usage, assoil carries two related but distinct meanings:
1. Criminal/civil acquittal: To formally clear a person of a charge; to set free from legal accusation or judgment.
2. Ecclesiastical release: To deliver a person from excommunication or other church censure; to restore a person to communion.
The term is archaic and appears almost exclusively in historical legal texts. Modern practitioners and researchers will not encounter it in contemporary statutes or opinions, but it surfaces with regularity in medieval and early modern English legal sources, ecclesiastical records, and older digests.
Common Language
Modern common usage (Wiktionary): To make something dirty or soiled; to soil, stain, or sully.
Historical common usage (Webster's 1913): To set free; to release. Also, to solve or clear up; to set free from guilt; to absolve; to expiate.
The gap here is notable and runs in opposite directions. The modern common meaning (to soil or dirty) is essentially the reverse of the legal meaning (to cleanse of guilt or free from censure). Webster's 1913 preserves the older literary sense that aligns closely with legal usage — absolution and release — but that sense has largely fallen out of ordinary English. Researchers encountering the word in a historical legal document should not import the modern common meaning; the legal sense is one of liberation and discharge, not contamination.
Common Confusion
ASSOIL / ABSOLVE / ACQUIT: These terms overlap significantly in historical usage but carry distinct procedural contexts. Acquit is the standard term for a verdict of not guilty in criminal proceedings. Absolve carries both legal and ecclesiastical weight but survived into modern usage in the ecclesiastical sense. Assoil, by contrast, became archaic in both registers and was used interchangeably for either context in older sources — making it essential to read surrounding text to determine whether a criminal, civil, or ecclesiastical proceeding is being described. Conflating assoil with a purely criminal acquittal risks missing its frequent application to church proceedings.
Why It Matters in Research
Researchers working in pre-modern English legal materials — particularly Year Books, medieval statutes, ecclesiastical court records, and early chancery proceedings — will encounter assoil as a technical term of discharge. Several navigational points:
Jurisdictional ambiguity in the sources: Because assoil functioned in both secular and ecclesiastical courts, its appearance alone does not indicate which forum is involved. The surrounding procedural language must be examined.
Statutory reference: Black's cites St. 1 Hen. IV c. 7, a fifteenth-century English statute. Researchers tracing the term in parliamentary or statutory history should begin there, but access to the original statute requires consulting specialized collections of early English statutes rather than modern legal databases, where the term will not appear.
Search challenges: The word's archaic status means it will not appear in modern case law searches. Corpus searches of older digitized materials (Year Books, Selden Society volumes, ecclesiastical court records) are the appropriate avenue. Variant spellings — assoile, assoiled, assoiling — should be included in search strings, as orthographic consistency was not a feature of medieval legal drafting.
Relationship to excommunication proceedings: In ecclesiastical sources, assoil is functionally the release instrument at the end of an excommunication proceeding. Researchers tracing the lifecycle of excommunication — from sentence through to reconciliation — should treat assoil as the terminal procedural act restoring the subject to communion.
Historical Dictionary Support
Both editions of Black's offer identical, terse definitions: to absolve, acquit, to set free, to deliver from excommunication. The brevity reflects the term's status as a known archaism even at the time of Black's compilation. Cowell's Interpreter, cited by Black's, provides the historical legal lexicographical foundation for the term and is the more instructive source for researchers seeking deeper treatment.
Webster's 1913 is unusually valuable here because it preserves the literary dimension that Black's omits — the Spenser and Jeremy Taylor quotations illustrate the term's range from simple release to moral absolution. This literary record confirms that assoil was not narrowly legal but belonged to a broader early modern vocabulary of guilt, release, and restoration. The fact that this broader meaning has collapsed entirely in modern English (replaced by the unrelated sense of making dirty) underscores why the word presents a genuine interpretive trap for researchers approaching historical texts without dictionary support.
Neither edition of Black's distinguishes clearly between the secular acquittal sense and the ecclesiastical delivery sense. For that distinction, Cowell and period-specific ecclesiastical law glossaries are preferable references.
Jurisdictional Note
The term is essentially confined to English legal history and the ecclesiastical law tradition that influenced early American colonial law. It does not appear as a live term in any modern common law jurisdiction. Researchers in Scottish legal history may encounter the functional equivalent in Scots law sources, where acquittal terminology has its own distinct vocabulary.