Definition
Gager del ley is an archaic Law French term meaning, literally, "to wage the law" — that is, to offer or undertake wager of law. In medieval English common law procedure, it referred to a defendant's formal offer to prove his innocence by oath, supported by a requisite number of compurgators (oath-helpers) who would swear alongside him. The phrase appears in early pleading records and legal writing as a procedural formula; it is functionally synonymous with wager of law and has no independent doctrinal content beyond that term. All three source dictionaries treat it as a bare cross-reference, directing readers immediately to WAGER OF LAW.
Common Confusion
Gager del ley and wager of law are the same thing — one is Law French, the other its English translation. Neither is to be confused with trial by ordeal or trial by combat, which were separate proof mechanisms in medieval procedure. Researchers encountering gager del ley in a primary source are simply seeing the French-language form of a wager of law plea; no distinction in substance or procedure applies.
Why It Matters in Research
This term appears almost exclusively in pre-modern English legal sources — Year Books, early plea rolls, and treatises written wholly or partly in Law French. By the time of Blackstone's Commentaries in the eighteenth century, the vernacular form (wager of law) dominated legal writing, and gager del ley had retreated to antiquarian use. Researchers working in medieval or early modern English legal materials should recognize the phrase on sight and understand that any procedural analysis requires consulting sources on wager of law, not a separate body of doctrine.
The practical research trap is treating gager del ley as a term of art with its own line of authority. It has none. Its sole function in the Law Mind corpus is as a routing label: seeing it in a source signals that the document is pre-modern, likely Law French in origin or influenced by it, and that the relevant substantive entry is WAGER OF LAW. It also signals proximity to other abolished common law procedures — compurgation, assize of wager — that clustered in the same historical period and were swept away in England by the same reform movement that culminated in the abolition of wager of law by statute in 1833.
Historical Dictionary Support
Black's Law Dictionary (both the first and second editions) and Bouvier's Law Dictionary are in complete agreement: all three entries consist of nothing more than a cross-reference to wager of law. No historical dictionary in the Law Mind corpus provides a standalone definition, doctrinal discussion, or historical narrative under this heading. This unanimity is itself informative — it confirms that even nineteenth-century legal lexicographers, writing at a time when archaic common law procedure was still within living scholarly memory, did not treat gager del ley as a term requiring independent explanation. The phrase had no life outside its function as a French-language label for a procedure already analyzed elsewhere.
What the historical dictionaries miss is any note of the term's paleographic and linguistic significance for legal historians. Encountering gager del ley in a primary source is a dating and provenance signal as well as a procedural one, but the dictionary tradition makes no mention of this.
Jurisdictional Note
Gager del ley, as a form of wager of law, was a creature of English common law and does not appear as a live procedural term in American legal sources. American courts inherited and briefly acknowledged wager of law but the procedure was never firmly established in colonial or early federal practice and was quickly discarded.