Definition
Cassatio (Latin: cassatio; also rendered in French legal usage as cassation) carries two related but distinct meanings in legal sources:
1. CASSATIO (procedural). In old English and Roman-influenced practice, the quashing or annulment of a legal proceeding, judgment, or writ — rendering it void. Used in early pleading and procedure to describe the formal act of abating or nullifying an action.
2. CASSATION (institutional). The power, and the courts exercising that power, to quash decisions of inferior courts on grounds of legal error — without substituting a new decision on the merits. Most prominently associated with the French Cour de Cassation and its counterparts in other civil law systems.
Common Confusion
Cassation is not synonymous with ordinary appellate review. A court of cassation traditionally does not decide the case itself on the merits; it annuls the lower court's decision and remands. This contrasts sharply with common law appellate courts, which may affirm, reverse, or modify a judgment and enter a new one. Researchers encountering cassation in comparative law sources should not assume the reviewing court resolved the dispute — it may only have established that the lower court erred. The distinction has blurred in some modern civil law jurisdictions, but it remains foundational in classical sources.
Why It Matters in Research
This term operates in two largely separate research contexts that rarely overlap, and conflating them produces errors.
In historical common law sources, cassatio appears in early pleading texts as a technical term for abatement or quashing. Burrill cites Townshend's Pleas, placing this usage in the procedural literature of the sixteenth and seventeenth centuries. Researchers working in pre-modern English practice records, Year Books, or early pleading manuals may encounter cassatio as a marginal notation or headword indicating that a proceeding was voided. It is a term of art in that context, not a court name or a system of review.
In civil law and comparative law research, cassation refers to an entire architecture of judicial review developed in post-Revolutionary France. The Tribunal of Cassation, established in 1790, became the Cour de Cassation in 1804 and remains France's highest court for civil and criminal matters. Its structural influence spread across continental Europe, Latin America, and former French colonial territories. Any researcher working in French law, comparative appellate procedure, or the reception of civil law institutions will encounter cassation as a central organizing concept.
The two senses share a Latin root and a common core idea — the voiding of something legally infirm — but they operate in distinct traditions. A researcher who finds cassatio in a nineteenth-century American treatise on pleading is almost certainly reading about the procedural sense; one who finds cassation in a comparative law article is almost certainly reading about the institutional sense.
Jurisdictional variation is significant: the reach of cassation-style review, whether courts of cassation can decide on the merits, and whether the model was adopted wholesale or adapted, varies considerably across civil law nations. Do not treat French doctrine as universal.
Historical Dictionary Support
Burrill's entry is compact but precise. He gives the procedural English meaning first — quashing, making void, abatement — with citation to Townshend's Pleas. He then pivots immediately to the institutional French meaning under the related headword Cassation, Court of, describing the Cour de Cassation as the highest court in France with power to quash decrees of inferior courts in both civil and criminal matters, and noting its 1790 origin under the name Tribunal of Cassation.
The entry is representative of mid-nineteenth-century American legal lexicography: attentive to the civil law tradition as a matter of comparative interest, but framing it from a common law vantage point. Burrill does not explore the theoretical distinction between cassation and merits review, nor does he address the spread of cassation courts to other jurisdictions. For deeper treatment, researchers should consult comparative law treatises and the institutional histories of civil law courts rather than relying on any single dictionary entry.
No other source dictionaries were provided for this entry.
Jurisdictional Note
The term in its institutional sense is primarily relevant to civil law jurisdictions. The French model — Cour de Cassation reviewing for legal error without deciding the merits — was adopted in modified form across continental Europe, parts of Africa, and Latin America. Common law jurisdictions do not use this term or this structure. Researchers in mixed or bijural jurisdictions (Louisiana, Quebec, Scotland) should verify which appellate tradition governs the specific legal question at hand.
Encyclopedia Cross-Reference
Law Mind Encyclopedia — Appellate Review
Law Mind Encyclopedia — Civil Law Tradition