Definition
A doitkin (also doit) was a base coin of small value, circulated in England and prohibited by statute. The term appears in legal sources primarily as a monetary denomination representing a negligible sum — functionally, the smallest meaningful unit of value in the currency hierarchy of medieval and early modern England. In legal usage, it carried practical significance as a threshold measure: amounts described as "not worth a doit" signaled de minimis value with rhetorical force. The coin itself was of debased metal, distinguishing it from silver or gold currency of lawful standard.
Common Language
Modern common usage (Wiktionary): A very small coin; a doit.
Historical common usage (Webster's 1913): A very small coin; a doit.
The common and legal meanings align closely here, but the legal context adds a layer the common definitions omit: the doitkin was not merely small in value but legally prohibited as base coin. The distinction matters for historical legal research — the term appears in statutory and judicial sources not simply as a denomination but as a category of unlawful currency, which carries different implications than a merely low-value coin of lawful issue.
Why It Matters in Research
Researchers will encounter doitkin almost exclusively in two contexts: (1) statutory materials addressing currency debasement and the regulation of coin quality in medieval and early modern England, and (2) rhetorical or formulaic usage in pleadings, judgments, and legal commentary where "not worth a doit" functions as a conventional expression of worthlessness — comparable to how modern courts use "nominal damages" or "de minimis."
The key research trap is treating doitkin as a purely archival curiosity. When it appears in early statutes — particularly 3 Hen. V, c. 1 — the term is doing legal work: it identifies a class of prohibited currency and implies penalties associated with uttering or circulating base coin. Researchers working on monetary regulation, fraud, or commercial law in the Lancastrian period should treat its appearance as a substantive statutory signal, not mere period color.
A second trap involves conflation with similarly named small coins across European legal systems. Doit, doitkin, and related terms appear in Dutch, Scottish, and other Continental monetary histories. Cross-jurisdictional confusion is easy when working with translated or summarized sources. Verify the statutory or judicial context before assuming the English prohibition applies.
The term does not generate significant modern case law and will not appear in contemporary research databases under active use. Its relevance is archival and historical.
Historical Dictionary Support
Black's Law Dictionary (2nd Ed.) provides the core entry, noting the statutory prohibition under 3 Hen. V, c. 1 and quoting Jacob's observation that the phrase "not worth a doit" survived in common speech long after the coin itself passed from circulation. This is a useful signal: the legal dictionary is doing double duty here, preserving both the regulatory history and the idiomatic afterlife of the term.
Black's relies on Jacob (Giles Jacob, A New Law Dictionary), which was a standard secondary source for early English legal terminology. Researchers should treat the Jacob attribution as a pointer to an earlier synthesis rather than primary authority — Jacob himself was summarizing statutory and common law sources rather than reporting original legal analysis.
No meaningful divergence exists across available historical dictionary sources; the term is stable and narrow. What the historical dictionaries collectively miss is any detailed account of enforcement — how the prohibition on base coin operated in practice, what the penalties were, and how courts distinguished doitkins from other debased currency. For that, researchers must go to the statute itself and to monetary history scholarship rather than the legal dictionaries.
Jurisdictional Note
The statutory prohibition is English in origin, grounded in Lancastrian-era currency regulation. Scottish and Continental sources use cognate terms for similar small coins, but the specific legal prohibition identified in Black's and Jacob applies to English law. Researchers working in Scottish legal history or Dutch commercial law should not assume the English statutory framework transfers.