Definition
A Latin legal phrase of medieval origin meaning "of Hussey" or "of the Hussey family." The phrase functions as a surname locator or family identifier in Latin-form legal records, particularly in English legal documents from the medieval and early modern periods. It is not a term of legal art with substantive legal meaning; rather, it is an instance of the standard practice of rendering English surnames — especially those of Norman or French origin — into Latin genitive or prepositional form for use in formal instruments, court rolls, writs, and pleadings.
In this case, the surname rendered is Hussey (also spelled Husé or Husé in Anglo-Norman), a family name of Norman origin borne by several notable English families. The Latin construction follows the common pattern of prefixing "de" to a Latinized or directly borrowed form of the surname, indicating membership in or descent from a named family or place.
Common Confusion
Researchers may initially confuse "de Hosato" with the far larger class of Latin "de [locus]" constructions that identify a party by place of origin or landholding (e.g., "de Merton," "de Clifford"). While those constructions often carry legal significance in feudal tenure and inheritance analysis, "de Hosato" identifies a family name, not a place. The distinction matters for indexing, searching, and interpreting the legal context of any instrument in which the phrase appears.
Why It Matters in Research
Researchers encountering "de Hosato" in historical legal records — particularly in medieval plea rolls, patent rolls, close rolls, or early common law writs — should treat it as equivalent to the surname Hussey and search accordingly. The Latin genitive "Hosato" does not correspond to a place-name in the way that many "de" constructions do; it is a surname transliteration, not a toponym, which distinguishes it from the far more common category of "de [place]" identifiers.
The critical trap for corpus researchers is mistaking this phrase for a topographical locator and searching geographic indices rather than personal name indices. Burrill notes the parallel Latinization Johannes Usus Mare for "John Hussey" (literally, "John of the Sea-use" or a folk-Latin rendering), which illustrates how inconsistently medieval scribes Latinized this particular surname. A single individual named Hussey may appear in different documents as de Husé, de Hosato, Hussaeus, or even in pseudo-translated form such as Usus Maris. Any archival or corpus search for a Hussey party must account for all variant Latin forms.
The Hussey family had legal and political significance across several periods of English history — holding baronies, appearing in feudal tenure disputes, and participating in parliamentary matters — so "de Hosato" may appear in records with genuine substantive legal content (land grants, inheritance disputes, attainder proceedings) even though the phrase itself carries no independent legal meaning.
Because this phrase appears in Latin-language instruments, researchers using Law Mind materials should cross-reference Latin document finding aids alongside English-language indices when working in pre-seventeenth century English legal sources.
Historical Dictionary Support
Burrill's Law Dictionary is the sole shelf source addressing this phrase, and its treatment is minimal: the entry notes that "Blount says he had seen Johannes Usus Mare, in Latin, for John Hussey." This is a reference to Thomas Blount, whose Nomo-Lexicon: A Law Dictionary (1670) and related antiquarian work documented unusual Latinizations of English names encountered in old records. Burrill reproduces the observation without further analysis.
The Blount/Burrill note is historically useful because it demonstrates that even early modern legal lexicographers recognized the irregularity of these Latinizations and thought it worth flagging for practitioners and scholars encountering them in archival research. The absence of any substantive legal definition in Burrill confirms that this entry was always understood to be a nomenclatural aid rather than a definition of a legal concept.
No other standard historical law dictionaries — Jacob's, Tomlin's, Bouvier's, Black's early editions — appear to carry a distinct entry for this phrase, which further confirms its status as a scribal convention rather than a term of art.