Definition
"Within three days." A Latin legal phrase used as a formal term of art in old English appeals procedure. The phrase specified the time period within which a particular act — typically the formal prosecution or advancement of an appeal in a criminal or civil proceeding — was required to be taken. It functioned as a procedural deadline embedded in the ritualized pleading language of medieval English law.
Why It Matters in Research
Researchers encountering this phrase in historical legal manuscripts, plea rolls, or transcribed proceedings should treat it as a marker of archaic appellate procedure rather than any modern procedural concept. The term appears in the context of the old "appeal" — not the modern appeal to a higher court, but the private criminal prosecution by an aggrieved party (see APPEAL OF FELONY). This distinction is critical: the procedural deadlines embedded in phrases like infra triduum governed a form of litigation that has been entirely abolished in English law and never took root in American practice.
The phrase is most useful as a dating and context signal. Its presence in a document suggests pre-modern English common law procedure, likely predating the formal abolition of appeals of felony in 1819. Researchers working with Fleta or other medieval legal treatises will encounter this term as part of the fixed formulaic language of those texts. It should not be read as creating any substantive legal right or obligation recognizable in modern practice.
Because the phrase is Latin Law Latin (abbreviated "L. Lat." in Burrill), researchers should be alert to the possibility of variant spellings or contractions in manuscript sources. Transcription errors in historical compilations are common with Latin phrases of this kind.
Historical Dictionary Support
All three source dictionaries are in complete agreement: infra triduum means "within three days" and operated as formal words in old appeals. Black's (both editions) and Burrill each point to the same source — Fleta, lib. 1, c. 31, § 6 and c. 35, § 3 — indicating the phrase's documentary basis is narrow and well-established. Fleta is a late thirteenth-century English legal treatise, and the references confirm the term's medieval origin.
Black's first edition contains an editorial aside — apparently a fragment from the surrounding text — noting that "the English law has left the matter entirely to the moral sense," which appears to be an artifact of imperfect editing rather than a substantive gloss on infra triduum itself. Researchers should not read substantive meaning into that fragment. The second edition drops the fragment entirely, presenting a cleaner entry.
No historical dictionary ventures beyond the bare definition and citation. None addresses the broader procedural context of appeals of felony, the consequences of failing to act within the triduum, or how this deadline interacted with other formal requirements of the appeal process. Researchers needing that context must go to primary sources — Fleta directly, or secondary works on medieval English criminal procedure.
Jurisdictional Note
This term has no operative meaning in any current jurisdiction. It is exclusively a feature of historical English common law procedure. American law never adopted the appeal of felony, and the phrase infra triduum will not appear in any modern statutory or regulatory context.