Definition
A Law Latin term drawn from old Scots law meaning murder or murther. MURTHRUM is the Latinized form used in Scottish legal instruments and records to denote the crime of deliberate killing — what modern law would recognize as murder. The term belongs to the formal written vocabulary of medieval and early modern Scottish legal practice rather than to any living legal doctrine.
Common Confusion
MURTHRUM and MURDRUM are easily conflated but carry distinct meanings depending on jurisdiction and context. MURDRUM in English law referred specifically to the fine levied on a hundred (a subdivision of a county) when a body was found and the community could not prove the deceased was English rather than Norman — a mechanism of collective accountability tied to the post-Conquest Frankpledge system. MURTHRUM in Scots law carries no such communal liability dimension; it is simply the Latin term for the act of murder itself. Researchers working across both Scots and English primary sources must attend to which term appears in which record, as their doctrinal implications are entirely different.
Why It Matters in Research
MURTHRUM is a locator term, not a substantive one. Researchers encountering it in Scots law manuscripts, court records, or early printed legal texts need only recognize it as the Latin rendering of murder or murther. Its value lies entirely in paleographic and terminological identification: a researcher transcribing or indexing an early Scots document who does not recognize MURTHRUM may misread, misflag, or fail to connect the record to homicide law materials.
The term does not carry the technical distinctions later developed in Scottish criminal law between murder and culpable homicide, nor does it map precisely onto the English common law architecture separating murder from manslaughter. When working with Scots law materials predating those distinctions, MURTHRUM should be understood as a general term for criminal killing rather than as a marker of any specific degree of culpability.
Researchers should also note the spelling variation. Early Scots Latin texts may render the same concept as MURDRUM, MURTHRUM, or related forms. MURDRUM has a separate, though related, doctrinal history in English law — connected to the Frankpledge system and the murdrum fine imposed on communities when a Norman was found slain and the killer unidentified. That English meaning is historically distinct from the Scottish usage captured by MURTHRUM, and conflating the two would be an error. See COMMON CONFUSION below.
Historical Dictionary Support
The four source dictionaries converge completely and briefly. Black's (both editions) and Burrill define MURTHRUM as "murther or murder" in old Scots law, each attributing the definition to Skene's De Verborum Significatione, the principal glossary of Scots legal Latin compiled by Sir John Skene and published in 1597 as an appendix to his edition of the Regiam Majestatem. Bouvier's entry is the most spare, confirming only the Scots law context without elaboration.
None of the historical sources attempt to distinguish MURTHRUM from MURDRUM or to analyze its relationship to contemporary Scots homicide doctrine. The Skene attribution is consistent across the dictionaries that cite it, and Skene's glossary is the appropriate primary source for anyone seeking the term in context. The historical dictionaries treat this as a simple identification entry, and that treatment is accurate — there is no suppressed complexity here.
Jurisdictional Note
MURTHRUM is a term of old Scots law exclusively. It does not appear in English common law sources with the same meaning, and it has no counterpart in modern Scottish criminal law, which uses the term "murder" as codified and developed through subsequent Scots case law and statute.