Definition
Abjudicatio is a term from old English law referring to the deprivation of a thing or right by the judgment of a court. The concept operates as a judicial act of dispossession: a court, by its authoritative decree, strips a party of a claimed right, property, or liberty. The term is functionally synonymous with forisjudicatio (also rendered forjudgment or forjudger), which carried the same sense of a party being put out of court and losing what was claimed or held.
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Common Confusion
Abjudicatio is easily confused with adjudicatio, which carries nearly the opposite sense: adjudication is the act of determining and awarding rights, while abjudicatio is the act of stripping them away by judgment. The prefix ab- (away from, off) versus ad- (toward, to) marks this distinction, but the similarity in appearance makes misreading probable in manuscript and early printed sources. Researchers transcribing or citing historical documents should confirm which term appears.
Abjudicatio should also be distinguished from abjuration, which is a renunciation or sworn abandonment of allegiance or right by the party themselves, not a deprivation imposed by a court.
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Why It Matters in Research
Abjudicatio is an archaic term that does not appear in modern legal usage. Researchers will encounter it almost exclusively in pre-modern English legal sources, particularly in pleading records and commentary on feudal and manorial proceedings. Its significance is primarily interpretive: understanding that abjudicatio denotes a judicially imposed deprivation — not voluntary relinquishment or legislative forfeiture — is essential for correctly reading historical case records and land title chains.
The term connects closely to the broader cluster of forjudgment concepts in old English practice, where courts exercised powers to deprive parties of franchises, lands, or liberties through formal judgment. Researchers working on the history of judicial forfeiture, franchise law, or the development of due process antecedents will find the term relevant as a marker of that older doctrine.
Note that the second edition of Black's appears to have a corrupted passage immediately preceding the abjudicatio entry, referencing a grant of "liberty or freedom" and the Termes de la Ley — that text belongs to a neighboring entry (likely ABJURATION or a liberty-related term) and should not be treated as part of the abjudicatio definition. Researchers consulting the second edition in digitized or reprinted form should be alert to this typographic contamination.
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Historical Dictionary Support
Both editions of Black's Law Dictionary give substantively identical definitions, describing abjudicatio as the deprivation of a thing by court judgment and equating it with forisjudicatio, forjudgment, and forjudger. The first edition cites Coke on Littleton (Co. Litt. 100a, b) and Townshend's Pleadings (Townsh. Pl. 49) as authority, grounding the term in well-established common law reference works.
The historical dictionaries provide no treatment of procedural context — how such a judgment was obtained, what showing was required, or in what courts the term was employed. Researchers should not expect the dictionary entries alone to yield a working account of the doctrine; the Coke on Littleton citation is the more productive entry point for substantive analysis.
No modern legal dictionary is expected to carry this term, and its absence from current secondary sources is unremarkable given its complete displacement by modern forfeiture and judgment vocabulary.
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