Definition
An obsolete term denoting a form of ancient tax or military contribution. The precise nature and scope of the levy are not well documented in surviving legal literature, and the term appears to have fallen entirely out of practical use by the time modern legal dictionaries were compiled.
Why It Matters in Research
Researchers encountering this term will almost certainly find it only in historical sources, most likely in medieval or early modern English legal documents, chronicle accounts of military finance, or records relating to feudal obligations. Its appearance in Black's 2nd Edition rests on a single attribution to Wharton — meaning the entire modern legal dictionary tradition for this term traces to one secondary source. That chain of authority is thin. If you encounter TENSERIZ in a primary source, the dictionary record alone will not give you enough to work with. The stronger research path is to move laterally into scholarship on feudal military taxation, scutage, tallage, and analogous levies, rather than relying on the dictionary gloss.
Because the term sits at the intersection of military obligation and fiscal history, corpus researchers should also check whether the term appears in variant spellings in historical records — medieval Latin and Law French sources routinely produced orthographic variation in tax terminology, and TENSERIZ may surface under alternate forms.
Historical Dictionary Support
Black's Law Dictionary (2nd Ed.) gives the definition as "a sort of ancient tax or military contribution," citing Wharton. This is the entirety of the historical dictionary record available for this term. Wharton's Law Lexicon, the cited authority, was a standard nineteenth-century English legal reference, but no further detail is recoverable from Black's entry itself.
The definition is notable for its hedging: "a sort of" signals that even the compilers were uncertain about the term's precise character. Whether TENSERIZ was a levy in money, a levy in kind, a personal service commuted to payment, or something else entirely is not resolved by the available dictionary sources. No other major historical legal dictionary — not Bouvier, not Tomlin, not Jacob — appears to have carried a separate entry for this term, which underscores how marginal it was even within the historical legal vocabulary.