Definition
A fotmel (also spelled fotmellus in Latin) is an obsolete English unit of weight applied specifically to lead, equal to seventy pounds. The term denotes a single pig of lead — that is, a cast block of lead in the standard unit form used in medieval English commerce and trade.
Why It Matters in Research
Fotmel is a term a researcher will encounter almost exclusively in medieval English records: mine accounts, customs rolls, exchequer documents, and property inventories involving lead production or trade. Lead was a significant commodity in medieval England, particularly from the mines of Derbyshire, Yorkshire, and Somerset, and its measurement and taxation generated a substantial documentary record.
The chief navigational challenge is unit consistency. Historical English records use several overlapping lead-weight terms — fotmel, charrus (or char), fother, and stone — and their relationships are not always stated explicitly in the document at hand. A fotmel at seventy pounds is the base pig unit; larger aggregates like the fother or charrus are built from multiples of smaller units, but the ratios vary across period and region. Researchers interpreting quantities in mine leases, toll records, or duty assessments must establish which unit system the specific document is using before drawing conclusions about volume or value.
Because fotmel is purely archival vocabulary with no modern legal application, it appears in research contexts almost entirely as a term of historical measurement rather than as a legal concept bearing rights or obligations of its own. Its legal relevance is indirect: quantities stated in fotmels determined tax liability, contract performance, and the value of estates in lead-producing regions. Mistranslating or conflating the unit can distort readings of economic and legal significance in those records.
Researchers working in Law Mind corpus materials on medieval property, mining rights, or commercial regulation should treat fotmel as a signal to also consult related measurement terms and, where possible, contemporary glossaries or account rolls that define local usage explicitly.
Historical Dictionary Support
Burrill's Law Dictionary provides the core entry: fotmel or fotmellus (Latin), "a weight of lead of seventy pounds; a pig of lead," citing Cowell's Law Dictionary and cross-referencing Charrus. This is a narrow but reliable entry — Burrill simply records the term's meaning and its primary source without elaboration.
Cowell's Interpreter (1607), cited by Burrill, is the foundational English legal lexicography source for this term and was a standard reference for obscure medieval Latinisms in English law. Researchers should note that Burrill's reliance on Cowell means the definition passes through two layers of early modern interpretation of medieval sources; where a primary document states a quantity in fotmels, it is worth verifying against contemporary account rolls rather than relying solely on the lexicographic tradition.
No significant divergence among historical sources has been identified for this term. Its meaning is narrow and stable: a pig of lead weighing seventy pounds. The historical dictionaries add no contested definitions or alternative interpretations.