Definition
To examine judicially or to inquire into a matter with authority to render a determination. In Scots law, cognosce carries two related but distinct senses:
1. (General) To examine or inquire into a matter as part of a formal legal process; to take cognizance of a question with authority to pass judgment upon it.
2. (Specific) To inquire into and formally determine that a person is insane or mentally incompetent — the proceeding by which a court or inquest established legal incapacity, with consequences for the management of the incapacitated person's estate and affairs.
The term derives from the Latin cognoscere (to know, to examine, to take cognizance of) and appears almost exclusively in the context of historic Scots law and procedure. It does not appear as an operative term in English common law courts.
Common Confusion
Cognosce is sometimes loosely associated with cognizance and the Latin cognosco, and researchers may encounter all three in historical sources dealing with Scottish or mixed Anglo-Scottish legal materials. These are related but not interchangeable. Cognizance is a broader English common law concept referring to jurisdiction or the taking notice of a matter by a court. Cognosce is the specific Scots procedural verb — the act of conducting the examination or inquest itself, particularly in lunacy proceedings. Conflating them in research leads to category errors when reading Scottish writs, brieves, or commission returns.
Recognized Forms
/SUBTYPES
The most significant procedural context in which cognosce appears is the brieve of idiotry or lunacy — a writ directing a jury or inquest to cognosce a person alleged to be of unsound mind. The brieve commanded the relevant authority to inquire into the person's mental state, and the formal act of conducting that inquiry and returning a finding was the cognoscing. A related form involved cognoscing an heir — examining and formally recognizing a claimant's right to inherit under Scots feudal procedure.
Why It Matters in Research
Researchers working in Scottish legal history, particularly materials from the sixteenth through nineteenth centuries, will encounter cognosce and its variants (cognosced, cognoscing, cognosce upon) in writs, commissary records, and court documents dealing with mental incapacity and feudal succession. The term signals a specific procedural moment — not merely an inquiry in the abstract, but a formal judicial examination carrying legal consequences.
Two research traps are worth noting. First, because the term is Scots-specific, English legal dictionaries (including most volumes on the Law Mind shelf) either omit it entirely or treat it only in passing. Researchers using English sources to interpret Scottish documents will find the gap. Second, the mental incapacity sense is historically precise: a person who had been cognosced was legally established as incapax, which triggered guardianship mechanisms (the curatory in Scots law). Modern readers encountering this term in probate or succession contexts should not assume it maps cleanly onto modern mental health adjudication procedures, which operate under entirely different statutory frameworks.
The Scots law of mental incapacity underwent substantial reform in the nineteenth and twentieth centuries, and cognosce as an operative term largely disappeared from active legal usage as modern statutory procedures replaced the old brieve system. Its appearance in sources is therefore itself a dating signal — documents using cognosce as a live procedural term almost certainly predate modern reform.
Historical Dictionary Support
Burrill's Law Dictionary is the primary shelf source capturing this term, defining it as "[f]rom Lat. cognoscere, to know. In Scotch practice. To examine; to inquire into," and noting the procedural context of brieves for cognoscing. Burrill's treatment is accurate as far as it goes but brief, gesturing toward the brieve context without fully developing the mental incapacity application or the feudal succession variant.
Wiktionary's modern entry usefully surfaces both senses — the general (to examine; to give judgment) and the specific (to determine a person to be insane or mentally incompetent) — and in this respect is more complete than Burrill on the practical range of the term's application.
Historical legal dictionaries outside the Scottish tradition largely ignore cognosce, reflecting its narrow jurisdictional footprint. Researchers should not expect coverage in English dictionaries of the same period.
Jurisdictional Note
Cognosce is a term of Scots law. It does not appear as operative legal vocabulary in English common law, American law, or other common law jurisdictions. Researchers encountering it outside a Scottish legal context should treat the usage as either a direct quotation from Scots procedure or a borrowing requiring careful source verification.