Definition
An archaic term for a market or trading place, derived from the Latin *mercatum*. Mercat appears primarily in Scots law sources and older legal documents, where it denotes a formally recognized market — typically one established or licensed by royal charter or local authority — at which goods could be bought and sold. The term is functionally synonymous with the English "market" in its legal sense: an organized, sanctioned trading venue carrying specific legal privileges and protections, including the right to hold periodic fairs, collect tolls, and, in some historical contexts, convey good title to goods sold within its bounds.
Common Language
Modern common usage (Wiktionary): Listed only as an obsolete form of "meerkat" — the southern African mammal.
Historical common usage (Webster's 1913): "Market; trade. [Obs.]"
The gap here is one of survival rather than meaning. In ordinary English, the word mercat has vanished entirely. The Wiktionary entry's meerkat association is a false cognate confusion — etymologically unrelated and irrelevant to the legal term. Researchers encountering mercat in a legal source should not import any modern common-English meaning; the word is a term of art belonging to a specific historical and jurisdictional legal vocabulary.
Common Confusion
Mercat should not be confused with the broader Latin mercatum (sometimes appearing in untranslated legal Latin) or the English cognate market as used in modern competition law and commercial contexts. These are related concepts but different registers. A mercat in Scots law implies a formally chartered or recognized trading institution with attendant legal rights and duties — not simply any commercial transaction or economic marketplace in the modern sense.
Why It Matters in Research
Researchers using the Law Mind corpus will encounter mercat almost exclusively in Scots law materials, historical charters, and pre-18th century sources. Several navigational points apply:
First, the term is a marker of source vintage and jurisdiction. Its appearance strongly signals Scots law or an older Anglo-Scottish legal document. If you find mercat in a source that claims to be English common law, examine the provenance carefully.
Second, the legal significance of a mercat historically turned on whether it was duly constituted — typically by royal grant. Scots law recognized the burgh mercat as a core institution of burgh organization, and disputes over mercat rights (the right to hold a market, exclude competitors, collect tolls) generated significant legal controversy. Researchers tracing commercial or property disputes in Scottish historical materials should recognize that mercat rights functioned much like franchise rights and required formal grant.
Third, the term does not appear in modern Scots law statutes in operative use. If you encounter it in a modern legal document, it is either quoted from an older instrument or used in a historical-legal analysis context. It carries no distinct operative meaning in contemporary law.
Fourth, do not assume that mercat entries in historical dictionaries capture the full doctrinal picture. The major historical dictionaries treat it as a simple lexical entry (market, Scots, from Latin) and do not address the substantive law of mercat rights, burgh privileges, or the consequences of unauthorized markets. Researchers needing that doctrinal depth should look to sources on Scots burgh law and the law of markets and fairs more broadly.
Historical Dictionary Support
The three source dictionaries are in complete agreement and are essentially identical in content. Black's (1st and 2nd editions) define mercat as "a market. An old form of the latter word common in Scotch law, formed from the Latin *mercatum*." Burrill echoes this closely, describing it as "an old form of market, common in Scotch law, closely formed from the Lat. mercatum."
All three sources treat mercat as a purely lexical or etymological note rather than a term requiring substantive legal exposition. This is understandable for a general legal dictionary but leaves important gaps. None of the historical dictionaries addresses the legal framework governing mercat rights under Scots law — the role of royal charters, the privileges attached to burgh mercats, or how mercat law intersected with the law of markets and fairs recognized elsewhere in the British legal tradition. Researchers who stop at the dictionary definition will have the word identified but not the legal institution understood.
Jurisdictional Note
Mercat is specific to Scots law and Scottish historical sources. It does not appear as a term of art in English, Welsh, or Irish legal materials, though the underlying legal concept of chartered market rights has close parallels in English law under the heading of "market" or "fair." In modern Scotland, market regulation is governed by statute, and mercat as a term has no operative role in contemporary legislation.