Duhaime's Law Dictionary Aberemurder Definition: A spontaneous and gratuitous murder. Related Terms: Murder An obsolete term of old English common law referring to a murder which was neither accidental, as a manslaughter, nor was it premeditated or accidental. John Bouvier's Law Dictionary defines aberemurder as follows: "In old English law. An apparent, plain or downright murder." Taken from the Latin word aberemurdrum. REFERENCES: Duhaime, Lloyd, Duhaime's Dictionary of Criminal Law Categories & Topics: Duhaime's Ancient Common Law Dictionary Duhaime's Criminal Law Dictionary Always looking up definitions? Save time with our search provider (modern browsers only) If you find an error or omission in Duhaime's Law Dictionary, or if you have suggestion for a legal term, we'd love to hear from you!