Definition
An archaic Latin term appearing in old English legal records meaning a plow. CARUA is an alternate spelling of CARUCA, the more common form of the word, and the two terms are interchangeable in historical sources. The term itself carries legal significance because the plow was the standard unit by which arable land was measured in medieval England — a carucate (or caruca of land) denoted the amount of land a single plow team could cultivate in a year, roughly 60 to 120 acres depending on soil and terrain. In this sense, CARUA functions not merely as a reference to an agricultural implement but as a foundational unit of land tenure, taxation, and feudal obligation.
Common Confusion
CARUA and CARUCA are variant spellings of the same term and should be treated as identical in legal research. Researchers encountering CARUA in a manuscript or record should cross-reference CARUCA immediately, as the bulk of legal dictionary commentary, glossarial tradition, and substantive discussion appears under the latter spelling. The variant CARVAGE (also CARUAGIUM) is a related but distinct term referring to the tax or assessment levied by reference to the carucate unit, not the unit or implement itself.
Why It Matters in Research
CARUA is primarily a finding and cross-reference problem. It appears infrequently and inconsistently in medieval English legal records — land surveys, plea rolls, and feudal surveys — where scribal variation was common and spelling was not standardized. A researcher working with original Latin sources or early English transcriptions may encounter CARUA where a legal dictionary leads them to expect CARUCA. Failure to recognize the equivalence can cause a researcher to miss the governing commentary entirely.
The practical legal significance of the underlying concept is substantial. Carucate-based land measurement governed assessments under Domesday and later feudal taxation regimes, including carucage — a tax levied by the number of plows a landowner held. Because the carucate was a functional rather than fixed measure, disputes over its extent appear in medieval pleading and record evidence. Researchers working in land tenure history, feudal obligation, or early English taxation should be fluent in the full family of caruca-derived terms.
Bouvier directs readers immediately to CARUCA without elaboration, which is the appropriate move. Burrill adds the French cognates (carue, chare) and the reference to Bracton, which is useful for researchers tracking the term into the primary sources. The Spelman reference in Burrill points to Henry Spelman's Glossarium Archaiologicum, a standard authority on medieval English legal vocabulary.
Historical Dictionary Support
Bouvier treats CARUA as a pure see-also, directing readers to CARUCA. This is consistent with the term's status as a minor variant rather than an independently developed legal concept.
Burrill provides the more useful entry. He identifies the Latin and French cognates, notes the preferred spelling (caruca), and flags the related term CARUCAGE (also rendered caruagium), which is where the tax dimension of the concept is developed. His citation to Bracton's De Legibus et Consuetudinibus Angliae, folio 37, grounds the term in one of the foundational texts of medieval English common law. Bracton's discussion of land and its measurement by plow units is genuine and well-documented, making this a reliable pointer for primary source research.
Neither Bouvier nor Burrill provides substantive doctrinal analysis under CARUA itself — both treat the term as derivative. Researchers seeking full development of the concept should consult the entries for CARUCA and CARUCAGE in both dictionaries, and Spelman's Glossarium for etymological and historical depth.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Caruca; Carucate; Feudal Land Tenure; Carucage.