Definition
A formal license, issued in the shape of a writ, formerly required under English law to authorize a merchant to draw or assign a bill of exchange to another party located abroad. Escambio was not itself a financial instrument but a regulatory precondition: without it, an English merchant lacked the legal authority to make over a bill of exchange to a foreign correspondent. The writ was obtained from royal authority and reflected the crown's early supervision of foreign exchange transactions. The institution is wholly obsolete, having been repealed by statute in the nineteenth century.
Common Language
Modern common usage (Wiktionary): "A licence formerly required for the making over a bill of exchange to another person overseas."
Historical common usage (Webster's 1913): "A license formerly required for the making over a bill of exchange to another over sea."
Editorial note: The common and legal definitions are unusually close here, reflecting the term's narrow technical scope. The legal sources add one meaningful dimension the common definitions omit: that escambio took the specific form of a writ — a document issued under royal authority — rather than a simple administrative license. That distinction matters when locating escambio in the hierarchy of early English commercial and prerogative instruments.
Common Confusion
Escambio and excambium are visually and etymologically similar but legally distinct. Excambium (also exchambium) refers to an exchange of lands — a real property concept — not to bills of exchange or foreign currency. In historical sources, especially Scottish and medieval English texts, excambium appears frequently in conveyancing contexts. Encountering either term requires immediate attention to context: escambio belongs to commercial law; excambium belongs to land law.
Why It Matters in Research
Escambio is a term of purely historical significance. No living jurisdiction employs it. Researchers are most likely to encounter it in three contexts: (1) English legal history prior to the nineteenth century, particularly sources dealing with the crown's regulation of foreign trade and exchange; (2) treatises on the history of bills of exchange and negotiable instruments, where escambio marks the transition from crown-supervised exchange to the modern freely assignable bill; and (3) abolitionist statutory history, where the repealing acts — 59 Geo. III c. 49 and 26 & 27 Vict. c. 125 — serve as terminus post quem markers.
When reading pre-repeal English sources, the absence of escambio does not mean a merchant was acting unlawfully — the requirement appears to have fallen into disuse before formal abolition. Researchers should not assume rigorous enforcement merely because the writ existed on the books. The gap between formal law and mercantile practice is well documented in this period.
The Spanish-derived etymology (noted by Rapalje & Lawrence: cambier, to change) connects escambio to the broader Romance-language family of exchange-related terms — cambium, excambium, cambist — that populate medieval and early modern commercial law texts. Researchers working in comparative or civil law sources should be alert to cognate terms that carry related but distinct meanings in those traditions.
Historical Dictionary Support
The four source dictionaries are in substantial agreement: escambio was a writ-shaped license authorizing an English merchant to assign a bill of exchange to a foreign party. All four point to the Registers of Writs (Reg. Orig. 194) as the authoritative source for the writ's form.
The dictionaries diverge on one point of detail: Black's (both editions) and Bouvier treat escambio primarily as an English law concept defined by its function; Rapalje & Lawrence add the Spanish etymology and frame it as a license rather than a writ, suggesting slightly different emphasis on its administrative versus judicial character. Bouvier is the most complete on abolition, citing both repealing statutes; Rapalje & Lawrence cites only the earlier one (59 Geo. III c. 49 § 11).
None of the historical dictionaries addresses the practical question of how frequently the writ was actually sought or enforced, or the relationship between the formal requirement and the rapid expansion of merchant self-regulation through the law merchant during the same period. Researchers should supplement these entries with secondary literature on the history of bills of exchange.
Jurisdictional Note
Escambio was specific to English law and has no continuing force anywhere. The repealing statutes — 59 Geo. III c. 49 (1819) and 26 & 27 Vict. c. 125 (1863) — are English. Civil law jurisdictions developed parallel but distinct mechanisms for regulating foreign exchange, typically under the rubric of cambium or lettre de change, without an equivalent writ requirement.