Definition
To warrant. In old conveyancing, the act by which a grantor bound himself by covenant in a deed of conveyance to defend the grantee in his title and possession against any adverse claim. The Latin formula captured the obligation precisely: warrantizare est defendere et acquietare tenentem, qui warrantum vocavit, in seisina sua — to warrant is to defend and acquit the tenant who has vouched the warrantor, in his seisin. The warrantizare obligation was thus the operative commitment underlying the warranty of title, giving the grantee a remedy against the grantor if a third party successfully asserted a superior claim to the land.
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Common Confusion
Warrantizare is the verb form describing the act of warranting; it is distinct from warrantia (the covenant or warranty itself) and from the voucher to warranty, which was the procedural mechanism by which a tenant being sued for land summoned his warrantor to defend the title. Researchers encountering warrantizare in old deeds or plea rolls should distinguish the operative word of covenant from the subsequent procedural steps — voucher, receipt of land in exchange — that could follow if the warranty was ever called upon.
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Why It Matters in Research
This term belongs almost entirely to the historical record. Researchers will encounter warrantizare in medieval and early modern conveyancing instruments, plea rolls, and land grant documents, not in modern practice. Its significance lies in identifying the presence of a warranty covenant: when a deed recites that the grantor warrantizat, the grantor has bound himself and his heirs to defend the grantee's title and, if the title fails, to give the grantee equivalent land in exchange.
Several navigational points matter for corpus research:
The term appears in both its Latin verbal form (warrantizare, warrantizat, warrantizavi) and in anglicized variants (warrantise, warrantize) depending on the period and document type. Searching only one form will miss related materials.
In early English land law, the warranty obligation had real procedural teeth through the writ of warrantia chartae and the voucher to warranty in real actions. When tracing a chain of title in historical records, encountering warrantizare signals that the grantor accepted personal liability — and that liability ran to heirs. This made the covenant significant beyond mere formality.
The term connects directly to the broader law of real warranties, which operated differently from the personal covenants of title familiar in modern conveyancing. Modern warranty deeds are the functional descendant of this obligation, but the mechanics, remedies, and pleading forms are entirely transformed. Do not read modern warranty deed doctrine backward onto historical warrantizare covenants without accounting for that transformation.
In American colonial records, especially in grants derived from English crown or proprietary patents, warrantizare language persists well into the eighteenth century. Researchers working early American land records should recognize the term as warranty language, not as an anomaly or scribal error.
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Historical Dictionary Support
Black's Law Dictionary (1st Ed.) treats warrantizare directly and supplies the Latin maxim defining its meaning: to defend and acquit the tenant who has vouched the warrantor in his seisin. This is the most substantive historical dictionary treatment available for the term and accurately reflects the medieval conveyancing context.
Black's Law Dictionary (2nd Ed.) does not provide a discrete entry for warrantizare as a standalone term; the source material supplied for that edition references warrant-related concepts in a different context (warrant of attorney, warrant of commitment) that are unrelated to warrantizare proper. Researchers should not expect the second edition to add depth on this term.
Neither edition situates warrantizare within the procedural framework of real actions — voucher to warranty, the writ of warrantia chartae, or the exchange remedy — that gave the obligation its practical force. For that context, Bracton, Littleton's Tenures, and Coke on Littleton remain the authoritative sources. Blackstone's Commentaries Book II discusses the warranty obligation and its decline in a manner accessible to researchers less familiar with the medieval sources.
The historical dictionaries correctly identify this as an old conveyancing term, and that characterization is accurate: warrantizare as an operative legal term was effectively obsolete in English practice after the real actions were abolished by the Real Property Limitation Act 1833 and the subsequent reorganization of property law.
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Jurisdictional Note
Warrantizare is a term of historical English land law. Its direct operational relevance ended with the abolition of the old real actions in England. In American jurisdictions, the concept survived in transformed, anglicized form through the warranty deed, but the Latin term itself did not carry forward into American statutory or judicial usage in any operative way.
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