Definition
To disrate a seaman or petty officer is to reduce that person to a lower rating or rank. The term is a verb of action used in maritime and naval law to describe the formal disciplinary or administrative act of demotion. A sailor's "rate" is their designated grade within the enlisted hierarchy — disrating strips that grade and reassigns the individual to a lesser one, with corresponding reduction in pay, authority, and standing.
Common Language
Modern common usage (Wiktionary): To lower a rate or rating; to demote a sailor to a lower rank.
Historical common usage (Webster's 1913): To reduce to a lower rating or rank; to degrade.
The gap between common and legal usage is narrow here, but meaningful in one respect: in ordinary language, "disrate" can apply loosely to any reduction in a rating or score. In maritime law, the term carries a specific procedural weight — it refers to an official act of naval or maritime discipline with defined consequences for the seaman's legal status, pay entitlements, and rights aboard the vessel. The casual sense of the word does not carry those legal implications.
Why It Matters in Research
Disrate is a term of art confined almost entirely to admiralty and maritime law. Researchers working in this area should note several practical points.
First, historical sources will use the term far more frequently than modern ones. The vocabulary of enlisted ratings and formal disrating procedures appears regularly in nineteenth- and early twentieth-century naval regulations, court martial records, and admiralty decisions. Modern maritime employment law tends to address the same subject through collective bargaining agreements, union contracts, and statutory frameworks that use different terminology — "demotion," "reduction in grade," or "downgrade."
Second, Anderson's Dictionary of Law cross-references disrate to DISPLACE, suggesting that the two terms were understood to occupy related conceptual territory in the late nineteenth century. Researchers should consult that entry in Anderson's to understand how contemporaneous legal writers distinguished or conflated displacement from service with reduction in rank.
Third, the consequences of disrating a seaman were not merely administrative. A seaman's rate affected wage entitlements, which in turn connected to maritime lien rights and wage claims cognizable in admiralty. A disrated seaman might have a cause of action if the disrating was improper or retaliatory. Researchers tracing wage lien cases or wrongful discipline claims in admiralty courts should keep disrate in view as a triggering event for downstream legal disputes.
Fourth, jurisdictional reach matters. Disrating in the context of the United States Navy was governed by naval regulations and the Articles for the Government of the Navy (later superseded by the Uniform Code of Military Justice). Disrating in the merchant marine context was governed by admiralty principles and applicable maritime statutes. These are distinct bodies of law, and historical sources do not always maintain a clean separation between them.
Historical Dictionary Support
Black's Law Dictionary (2nd ed.) gives a precise, functional definition: to deprive a seaman or petty officer of his rating or rank; to reduce to a lower rate or rank. This is the entry's entire substance, and it is sufficient — disrate is a term with one meaning, and Black's captures it cleanly.
Anderson's Dictionary of Law offers no independent definition, directing the reader instead to DISPLACE. This cross-reference is editorially curious, since disrate (reduction in rank while remaining in service) and displace (removal from a position, often implying replacement or elimination of the role) are not synonyms. The Anderson's cross-reference likely reflects a now-outdated organizational choice rather than a claim that the two terms are equivalent. Researchers should treat the Anderson's entry as a pointer, not a definition, and rely on Black's for substantive guidance.
Neither source addresses procedural requirements for disrating, available remedies for an improperly disrated seaman, or the relationship between disrating and maritime wage liens — gaps that reflect the necessarily condensed nature of period legal dictionaries. Primary sources in admiralty and naval law must fill those spaces.
Jurisdictional Note
In the naval context, disrating is governed by military law — historically naval regulations, and from 1951 onward the Uniform Code of Military Justice — and is outside the scope of civilian admiralty courts. In the merchant marine context, disrating is an admiralty matter subject to federal jurisdiction. Researchers should confirm at the outset which context applies before consulting either body of law.