Definition
Avaria is a Latin term of medieval maritime law denoting average — that is, the loss or damage arising from maritime perils, and more specifically the system of proportional contribution among shipowners, cargo owners, and other interested parties to bear such losses. The term appears in civil law and continental European maritime codes as the direct predecessor to the English concept of average, encompassing both the incidence of maritime loss and the obligation to share it.
In practice, avaria functions as the root concept underlying two distinct doctrines: (1) the loss itself — damage to ship or cargo caused by sea peril, jettison, or maritime accident — and (2) the legal mechanism requiring those who benefit from a sacrifice or expenditure made for the common safety to contribute proportionally to the party who bore it.
Common Language
Modern common usage (Wiktionary): Not in general circulation in modern English. The term survives primarily in Romance languages (Spanish: avería; Italian: avaria) meaning damage, breakdown, or malfunction, particularly of vehicles or machinery.
Historical common usage (Webster's 1913): Webster's 1913 does not carry a separate entry for avaria as an English term, reflecting its status as a technical Latinate borrowing rather than a naturalized English word.
Editorial note: The Romance-language descendants of avaria have drifted far from the legal original. In modern Spanish and Italian, avería/avaria simply means a mechanical breakdown or defect — losing entirely the maritime contribution concept. A researcher encountering avaria in historical legal texts should not read it through the lens of its modern vernacular descendants.
Common Confusion
Avaria and average are the same concept at different stages of linguistic transmission. Avaria is the Latin civil-law form; average is its English maritime-law adaptation. Researchers sometimes treat them as distinct doctrines when they find both terms in comparative legal literature — they are not. The confusion compounds because average in English subsequently split into general average and particular average, while avaria in continental sources developed its own parallel taxonomy (avaria grosse / avaria particularis). Do not assume the English average doctrine maps cleanly onto avaria doctrine in a given continental source; the procedural rules and allocation principles varied by port custom and national code.
Why It Matters in Research
Avaria is primarily a research gateway term, not a working term of modern American or English law. Its importance is in identifying the continental and civil-law antecedents of average doctrine. Researchers working with historical maritime sources — particularly Dutch, Spanish, Italian, Hanseatic, or Roman Dutch materials — will encounter avaria where English sources would say average.
The truncated Burrill entry (citing Loccen. de Jure Maritimo) signals the term's grounding in the Dutch institutional tradition. Johannes Loccenius's De Jure Maritimo et Navali was a seventeenth-century Dutch-Swedish treatise that helped transmit Hanseatic and Roman maritime custom into systematic legal form. Finding avaria in a source citing Loccenius places the reader in that northern European civil-law maritime tradition.
The chief research trap is periodization. Avaria in a sixteenth-century Spanish colonial document, a seventeenth-century Dutch admiralty record, and a nineteenth-century Italian commercial code each carry somewhat different procedural baggage. The core contribution concept is stable; the triggering events, calculation methods, and adjustment procedures are not. Do not carry rules from one corpus to another without checking the governing lex mercatoria or code.
Researchers in admiralty history will also find avaria useful for tracing how general average doctrine entered English law — largely through the Law Merchant and the influence of continental treatise writers on English admiralty courts. The term itself rarely appears in English cases, but the doctrine it names is everywhere in them.
Historical Dictionary Support
Burrill's entry is conspicuously brief — little more than a cross-reference to Loccenius and the notation that avaria means average or contribution. This brevity is itself informative: by the time Burrill compiled his dictionary, the term had no independent circulation in American or English legal practice. It was a source-language term useful for reading civil-law authorities, not a term of art in domestic pleading or adjudication.
What historical dictionaries collectively miss is the doctrinal richness of the continental avaria literature. The distinction between avaria communis (shared loss, analogous to general average) and avaria particularis (loss falling on one party alone, analogous to particular average) was well developed in the Hanseatic ordinances and continental codes before English law formalized the same distinction. A researcher relying solely on English-language dictionaries will find the concept, but not its full genealogy.
Jurisdictional Note
Avaria as a term of art survives in jurisdictions with civil-law maritime traditions — notably Spain, Italy, and Latin American nations whose commercial codes descend from the Spanish Código de Comercio. In these systems, the term retains technical legal meaning and is not interchangeable with casual usage. English and American admiralty law absorbed the doctrine under the term average and no longer uses avaria in formal legal instruments.