Definition
Feriae (singular: feria) is a term from Roman law referring to holidays or festival days — periods during which ordinary civic, legal, and commercial life was formally suspended. On these days, free Roman citizens did not conduct political business or pursue litigation, and enslaved persons were generally relieved of their labor obligations. As days on which legal proceedings could not lawfully take place, all feriae were classified as dies nefasti (inauspicious or legally prohibited days), as distinguished from dies fasti (days on which courts and assemblies could properly function).
Recognized Forms
/SUBTYPES
Roman legal sources recognized two principal categories:
Feriae publicae: Public holidays observed throughout the Roman state, typically tied to religious festivals, civic ceremonies, or official commemorations. These were binding on the whole community.
Feriae privatae: Private holidays observed only by individual families or persons, typically in commemoration of personal or ancestral events — births, deaths, or family rites. These carried no universal legal force but were recognized as legitimate occasions for the individuals concerned to suspend their ordinary obligations.
Why It Matters in Research
Researchers working in Roman law, canon law, or the history of civil procedure will encounter feriae in discussions of court calendars and the dies fasti/nefasti framework. The practical significance is procedural: acts performed on dies nefasti — days on which feriae applied — could be void or voidable, depending on the nature of the act and the period of Roman legal development in question.
The term carries forward into medieval canon law and ecclesiastical practice, where the word feria was repurposed almost entirely. In canon law, feriae are days of the liturgical week (Feria Secunda = Monday, Feria Tertia = Tuesday, and so on), entirely stripped of the suspension-of-proceedings meaning the term carried in classical Roman law. Researchers moving between Roman civil law sources and medieval canonical or ecclesiastical sources must watch for this shift — the same word means something structurally opposite in the two traditions. Canon law feriae are ordinary weekdays; Roman law feriae are extraordinary suspended days.
In historical legal dictionaries and glossaries of civil law, feriae appears frequently in discussions of prescription and limitations, because the running of time periods for legal actions was sometimes tolled or affected by feriae. This makes the term relevant not only to procedural history but to the early conceptual history of statutes of limitations.
Historical Dictionary Support
Black's Law Dictionary (2nd Ed.) defines feriae in terms consistent with classical Roman sources: holidays during which free-born Romans suspended political transactions and lawsuits, and during which enslaved persons enjoyed cessation from labor, with all feriae classified as dies nefasti. Black's correctly identifies the public/private division.
What Black's does not address — and researchers should be aware of — is the significant semantic drift the term underwent in ecclesiastical and canon law usage, where feria lost its meaning as a day of suspension and became simply a neutral designation for days of the liturgical week. This gap in Black's treatment reflects its focus on civil law antecedents rather than the parallel canonical tradition.
Jurisdictional Note
Feriae has no direct application in modern common law jurisdictions as a operative legal concept. Its relevance is historical and comparative — primarily in Roman law scholarship, civil law history, and canon law. Researchers in civil law jurisdictions (France, Spain, Louisiana, Quebec) may encounter the term in historical sources tracing the foundations of court calendar rules or procedural law.