Definition
In Roman civil law and early English law, *nundinæ* (singular: *nundina*) referred to a fair or market — specifically, a regularly recurring public market held on a fixed day. The term carried the connotation of a scheduled, lawful gathering for trade, distinct from casual or informal exchange. In medieval English legal usage, the term appeared in Latin pleading and in texts governing market rights, typically in the phrase *in nundinis et mercatis* — "in fairs and markets" — to describe the venues where regulated commercial transactions took place.
The term is almost exclusively encountered in its Latin plural form and belongs to the vocabulary of Roman-derived commercial and municipal law absorbed into early English legal practice.
Common Confusion
NUNDINÆ should not be confused with a general or informal marketplace. In both Roman and early English law, the term implied a legally recognized event — one held by authority, often by royal grant or ancient custom — with defined rules governing who could trade, what tolls applied, and what protections attached to buyers and sellers. An unauthorized gathering that resembled a fair in practice was not a *nundina* in the legal sense and would not carry the same privileges or protections.
Why It Matters in Research
This is a Latin term of art found almost exclusively in medieval and early modern English legal sources. Researchers will encounter it primarily in:
- **Bracton and similar treatises**: Bracton's *De Legibus et Consuetudinibus Angliae* uses *nundinis et mercatis* as a standard formula when addressing market jurisdiction, toll rights, and warranty of title for goods sold in trade. The citation in Black's to Bracton fol. 56 is a direct pointer to this context.
- **Plea rolls and charters**: Royal grants of fair and market rights frequently appear in Latin, and *nundinæ* is the standard term. Researchers working with medieval borough records, franchise documents, or toll disputes will find the term embedded in Latin text without translation.
- **Market overt doctrine**: The legal privileges attaching to sales made *in nundinis et mercatis* connect directly to the doctrine of market overt — the rule that a buyer who purchased goods openly in a lawful market acquired good title even against the true owner. Understanding *nundinæ* as a term of legal art is essential to correctly interpreting sources that invoke this protection.
The term has no living use in modern legal practice. Its research value is entirely historical and linguistic: a researcher who does not recognize it as meaning "fair" or "lawful market" in a specific, privileged sense may misread the scope of a medieval legal text or the conditions attached to a franchise grant.
Historical Dictionary Support
Black's Law Dictionary (2nd Ed.) gives the definition tersely: "A fair. In *nundinis et mercatis*, in fairs and markets," citing Bracton fol. 56. This is accurate as far as it goes, but the entry underserves the term's legal weight. Black's treats it as a simple translation equivalence — *nundinæ* equals "fair" — without noting that the legal significance lay precisely in the *recognized* character of the nundinae. A fair held without royal charter or prescriptive right was not a true *nundina* in the sense Bracton used the term.
No further historical dictionary treatment of meaningful depth is available in the surveyed sources. Researchers seeking fuller treatment should consult Bracton directly and Du Cange's *Glossarium Mediæ et Infimæ Latinitatis*, the standard reference for medieval Latin legal terms, which provides extensive treatment of *nundinæ* and its derivatives in continental and insular usage.
Jurisdictional Note
The term belongs to the shared vocabulary of Roman civil law and medieval English common law. It has no distinct American legal history — by the time English law transplanted to the colonies, Latin market terminology had been largely displaced by vernacular equivalents. Research use is confined to English and continental European legal sources from roughly the twelfth through seventeenth centuries.