Definition
Latin. "As undefended" or "as making no defense." A phrase from old English practice describing the treatment of a defendant who failed to appear or otherwise enter a defense to an action. When a defendant stood pro indefenso, the proceeding advanced as though no opposition had been offered — effectively equivalent to a default in modern terminology.
Why It Matters in Research
This is a term of old English practice, and researchers should expect to encounter it primarily in pre-nineteenth century common law materials, medieval legal treatises, and early chancery and ecclesiastical court records. It does not appear as an operative term in modern Anglo-American procedure, having been supplanted by the developed doctrine of default judgment and, in equity, the taking of a bill as confessed.
The primary corpus anchor is Fleta, the thirteenth-century Latin treatise on English law, which Black's and Burrill's both cite to lib. 1, c. 41, § 7. Burrill adds a second reference at lib. 6, c. 39, § 2. Researchers working with Fleta or other medieval Latin legal sources should recognize pro indefenso as a procedural status designation, not a substantive finding on the merits.
The practical trap for researchers is treating this phrase as interchangeable with a modern default judgment. The modern default carries specific procedural machinery — notice requirements, entry of default, and separate judgment — that did not exist in the same form in early common law practice. Pro indefenso described a procedural posture; it did not necessarily carry all the consequences that a formal modern default judgment entails.
Researchers searching historical records for instances of pro indefenso should also be alert to variant spellings and Latinized shorthand common in manuscript court rolls. The phrase may appear abbreviated or embedded in formulaic Latin recitals.
Historical Dictionary Support
Black's (1st and 2nd editions) and Burrill's are in close agreement: all three define the phrase as "as undefended" or "as making no defense" and identify it as a phrase of old practice. The consistency across these sources confirms the term had a stable, narrow meaning with no contested interpretive history.
None of the historical dictionaries elaborate on what procedural consequences followed from a defendant being treated pro indefenso — whether judgment was entered immediately, whether the plaintiff still bore any burden of proof, or how the status interacted with other procedural doctrines. Researchers needing those details must go to Fleta directly or to secondary treatments of early English civil procedure. The dictionary entries function here as locators pointing toward primary source material rather than as comprehensive explanations.
Burrill is marginally more useful than Black's in this instance, adding the second Fleta citation (lib. 6, c. 39, § 2) that gives researchers an additional passage to consult.