Definition
A vacaria (also rendered vacuaria in some old records) is a Latin term appearing in medieval English legal and administrative records to denote a void, vacant, or waste tract of ground — land that was uncultivated, unoccupied, or otherwise lying idle. The term was used primarily in fiscal and exchequer contexts to describe parcels of land that generated no revenue or had fallen out of productive use.
Why It Matters in Research
Researchers working with medieval English land records, exchequer memoranda, or manorial surveys will encounter this term as a descriptor for categories of land rather than as a legal right or cause of action. Its significance is fiscal and administrative: vacaria entries in exchequer rolls typically signal land that the Crown or a lord could not tax, let, or account for in the ordinary way. Distinguishing vacaria from related concepts — such as waste (terra vasta) or common land — is essential for accurate interpretation of medieval land surveys and inquisitions.
The term is almost exclusively confined to Latin records of the 13th century and earlier. Researchers working in English-language sources from the 14th century onward are unlikely to encounter it in active use. Its appearance is a marker of the formulaic Latinity of exchequer clerks rather than a term of art in substantive land law. Because vacaria does not carry over into the common law vocabulary in any significant way, it will not appear in later abridgments, equity reports, or statutory materials.
Burrill cites the Memoranda of the Exchequer, Michaelmas Term, 9 Edward I (1281), via Cowell's Interpreter, as the documentary basis for the entry. Researchers tracing this term should look to the Memoranda Rolls held in the Public Record Office (now The National Archives, Kew) for primary source confirmation. Cowell's Interpreter (1607) is itself a valuable secondary bridge between medieval Latin record vocabulary and later English legal usage and is available in the Law Mind historical sources shelf.
Historical Dictionary Support
Burrill's Law Dictionary provides the sole dictionary treatment among the Law Mind shelf sources. The entry is brief and referential: it identifies the term as Latin, classifies it as belonging to "old records," gives the meaning as "a void place or waste ground," and cites the Exchequer Memoranda of 9 Edward I via Cowell. No substantive legal doctrine is attached to the term; it functions purely as a record label.
No entry for vacaria appears in Bouvier, Black (early editions), or other standard common law dictionaries, which is consistent with the term's narrow temporal and administrative scope. Its absence from those sources confirms that vacaria did not migrate into common law pleading or doctrine and remained a piece of administrative Latinity useful only for reading original medieval records.
Cowell's Interpreter, the intermediary source Burrill cites, was a comprehensive glossary of legal and record Latin published in 1607 and designed precisely to assist practitioners and scholars in reading older instruments. Cowell's entry, filtered through Burrill, represents the standard handling of this term: archival description, no elaboration of legal consequences.
Jurisdictional Note
Vacaria is specific to medieval English exchequer and administrative records. Researchers working in Scottish, Welsh, or Irish medieval records may encounter cognate Latin terms with similar or divergent meanings; independent verification against those record traditions is advisable before inferring equivalence.