EVENTUS

Definition

A Latin term used in old English law meaning an event — specifically, a thing or outcome that arises from a prior cause. The term carries a causal-relational meaning: an eventus is not merely a happening in the abstract, but a result that follows necessarily or naturally from some antecedent cause. It appears most often in maxim-form reasoning and in doctrinal writing that traces consequences back to their legal source.

Why It Matters in Research

Researchers will encounter eventus primarily in two contexts: medieval and early modern English legal writing, and the Latin maxims embedded in common law treatises and Year Books. The term is rarely used as a standalone operative word in pleading or judgments; instead, it appears as part of a causal formula — most characteristically in the maxim reported by Coke: Eventus est qui ex causa sequitur, et dicuntur eventus quia ex causa eveniunt (an event is that which follows from a cause, and they are called events because they come out of a cause). Understanding this usage is important when reading Coke's Reports and related materials, where the distinction between a cause and its eventus underlies reasoning about liability, consequence, and legal responsibility. The term connects to a broader strain of Latin causal terminology in early common law. Researchers working in tort history, criminal law history, or the foundations of causation doctrine will find eventus functioning as the conceptual counterpart to causa — cause being the initiating force, eventus being what it produces. This pairing matters when tracing how early common law thinkers understood the relationship between act and consequence before modern doctrinal categories like proximate cause were developed. Be cautious about anachronistic reading. The word event in modern legal and common English carries a broader, more neutral meaning than eventus did in its original legal context. Eventus implies causal derivation; a modern "event" does not. Reading historical passages that use eventus as though they simply mean "occurrence" or "happening" will flatten the causal reasoning the author intended. Burrill's entry is brief and does not trace the term beyond its appearance in Coke. Researchers should not expect to find eventus as an active term in post-17th century English or American legal writing except where Latin maxims are being quoted or analyzed.

Historical Dictionary Support

Burrill's Law Dictionary provides the essential entry: eventus as a Latin legal term meaning an event that follows from a cause, supported by the Coke maxim from 9 Co. 81b. Burrill does not elaborate beyond this single definition and citation, treating the term as a technical Latin relic rather than a living doctrinal concept. The entry's brevity reflects the term's status in 19th-century American legal practice — historically significant but no longer in active doctrinal use. The Coke passage Burrill quotes is the principal authoritative source for this term in common law. It belongs to a tradition of scholastic-style legal reasoning that defined legal concepts through Latin maxims with embedded logical structure. The maxim itself is both definition and proof: eventus is what follows from cause, and the word's derivation (evenire) is offered as confirmatory evidence of its meaning. This mode of reasoning — using etymology as legal argument — was standard in early common law jurisprudence and signals that researchers should read eventus not as a purely technical term but as part of a philosophical vocabulary about causation. No other major historical legal dictionaries in the Law Mind corpus provide entries for this term, making Burrill the primary reference point. The absence of the term from later dictionaries underscores its archaic status.

Related Terms