Definition
An archaic Latin term with two distinct uses in historical legal practice:
1. (Roman and civil law) The party making an appeal; equivalent to the modern "appellant." In this sense, appellator denoted the person who appealed a judgment to a higher tribunal. Some civil law sources, particularly as noted by Calvin, also applied the term to the judge ad quem — the judge or tribunal to whom the appeal was directed — a usage that stands in tension with the more common meaning.
2. (Old English and common law practice) An accuser or one who formally appealed another person — not in the modern sense of seeking appellate review, but in the older procedural sense of "appeal of felony," in which a private individual brought a criminal accusation against another. In this context, appellator is synonymous with "appealer" or "appellor."
Common Confusion
The two meanings of appellator point in quite different directions and can mislead researchers reading across legal traditions. In the civil law tradition, appellator means the party seeking review — the equivalent of today's appellant. In early English practice, the term carries the meaning of accuser in a criminal appeal proceeding, a wholly different procedural context. Additionally, the Second Edition of Black's Law Dictionary introduces a third reading — the judge receiving the appeal — which conflicts with the First Edition's and Burrill's accounts. Researchers should treat the Calvin-sourced gloss with caution; it likely reflects a minority or specialized usage.
Do not conflate appellator with appellor. Though related in origin, appellor is the more specific English common law term for the criminal accuser in an appeal of felony, while appellator is the broader Latin form used across both civil and common law sources.
Why It Matters in Research
Appellator is a dead term in modern practice — it appears in no current procedural rules or statutes — but it surfaces with some regularity in historical legal texts, particularly in translations of or commentaries on Roman and civil law sources, medieval English treatises (notably Bracton), and early statutory materials such as the Statute of Westminster II. Researchers working in those layers of the Law Mind corpus need to recognize the term and select the correct meaning based on the legal tradition of the source.
The internal inconsistency between the First and Second Editions of Black's is a genuine research trap. A researcher relying solely on the Second Edition's definition — that appellator refers to the judge receiving the appeal — will misread civil law passages that use the term for the appealing party. When the term appears in a passage citing the Digest, assume the standard civil law meaning (the appellant). When it appears in an English common law context citing Bracton or Westminster statutes, assume the criminal accusation meaning.
The cross-tradition ambiguity also matters for understanding how appeals functioned differently in Roman/civil law versus early English practice. The English "appeal of felony" was not an appellate review mechanism; it was a form of private prosecution. Finding appellator in that context tells you something about the procedural posture of the case, not merely the vocabulary of the scribe.
Historical Dictionary Support
Burrill provides the most complete account, distinguishing the civil law meaning (appellant) from the old English practice meaning (accuser/appealer), and supplying the primary source references — the Digest at 49.13 and Bracton at folio 141b — that anchor each usage. This dual-meaning treatment is the most useful for corpus research.
The two editions of Black's diverge on a significant point. The First Edition defines appellator simply as equivalent to "appellant" and notes the civil law application without introducing the judge-side reading. The Second Edition, by contrast, specifically attributes to Calvin the meaning of "judge ad quem." This divergence likely reflects editorial revision incorporating a more specialized source, but it creates ambiguity rather than resolving it. Neither edition engages with the English criminal appeal meaning that Burrill addresses.
Historical dictionaries collectively under-represent the criminal accusation sense of the term, which is the meaning most likely to appear in early English common law materials. Researchers should treat Bracton and the Statute of Westminster II as primary guides in that context, rather than relying on dictionary definitions alone.
Jurisdictional Note
The term has no modern jurisdictional significance. Its relevance is confined to historical civil law texts (Roman law, canon law, early continental practice) and pre-modern English common law materials. No contemporary U.S. or Commonwealth jurisdiction uses appellator as a term of art.
Encyclopedia Cross-Reference
civpro_9: Remand — 28 USC 1447 and Appellate Review of Remand Orders (The Law Mind Civil Procedure & Evidence Encyclopedia) — for modern appellate review concepts that appellator historically approximated in civil law usage.