Definition
A dairy. The term is an archaic legal designation for a dairy or dairy operation, appearing in early English legal records and administrative documents. Its use in legal contexts reflects the period when land use, agricultural operations, and manorial arrangements were subject to formal legal classification.
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Why It Matters in Research
DAYERIA is almost entirely a term of historical English law and will surface only in early records — manorial rolls, land grants, estate surveys, or glossaries drawn from medieval and early modern practice. Researchers encountering the word in primary sources should treat it as a straightforward descriptor of a dairy facility or dairy-related landholding, not as a term carrying distinct legal rights or obligations of its own.
The principal research trap is mistaking the truncated Black's second edition entry for a complete definition. The second edition entry opens mid-sentence ("which he is concerned at the assizes, etc. Abolished by 5 & 6 Vict. c. 22, § 12") before pivoting to the dairy definition — this appears to be a printing artifact, with text from an adjacent or preceding entry running into the DAYERIA entry. The dairy definition is the operative one; the assize language belongs elsewhere. Researchers relying on the second edition entry in isolation may be confused by this typographical corruption.
The statutory reference to 5 & 6 Vict. c. 22, § 12 (a Victorian-era English statute) appears to have been misplaced into this entry and should not be treated as legislation bearing on the meaning or abolition of dayeria itself.
Because Black's in both editions cites only Cowell — that is, John Cowell's *The Interpreter* (1607), an early English law dictionary — the word's legal pedigree runs through a single seventeenth-century source. Researchers seeking fuller context should consult Cowell directly. The term does not appear to have developed an independent doctrinal history beyond its use as a descriptive label for dairy property.
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Historical Dictionary Support
Both editions of Black's agree on the core definition: a dairy. The first edition is concise and clean. The second edition is textually garbled, with extraneous language prefacing the definition — almost certainly a compositor's error merging adjacent entries. Neither edition provides substantive elaboration.
Both editions attribute the term to Cowell, indicating that Black's did not draw on independent legal authority but instead passed Cowell's gloss forward. This is consistent with Black's treatment of many archaic Anglo-Latin and law-French terms, where Cowell serves as the proximate rather than primary source.
No other major historical legal dictionaries in the Law Mind corpus appear to develop the term further. Its absence from later editions and from American legal usage confirms that DAYERIA never crossed into common law practice outside its original English archival context.
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Jurisdictional Note
DAYERIA is exclusively a term of historical English law. It has no recognized American, Scottish, or Commonwealth legal usage. Researchers working in U.S. legal history will not encounter it except in comparative or etymological discussions.
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