Definition
In old English law, a toll or duty paid for the privilege of landing goods at a quay or wharf. The charge attached to the act of bringing cargo ashore at a designated landing place and was collected as a form of revenue, typically owed to the Crown or to the lord holding authority over the port facility. Also rendered as cayage or kayage.
Common Confusion
CAYAGIUM, KAYAGE, and CAYAGE are variant spellings of the same term and should be treated as interchangeable when encountered in historical sources. Researchers should not interpret the spelling differences as indicating distinct duties or different legal instruments. Burrill cross-references KAYAGE as the preferred search term in his dictionary, which is a useful reminder that indexing in historical legal references is inconsistent.
Why It Matters in Research
This term will appear only in documents relating to medieval and early modern English port regulation, customs administration, and Crown revenue. Researchers working in those areas should note several practical points.
First, the duty was distinct from other port-related charges such as anchorage (for mooring a vessel), wharfage (for use of the wharf structure itself), and portage (for carriage of goods). These terms are easily conflated, and historical documents do not always use them with precision. Identifying which charge applied to a given transaction may require consulting the surrounding instrument rather than relying on the term alone.
Second, Bouvier's entry adds a detail not found in the other sources: the barons of the Cinque Ports held an exemption from cayagium. This is significant for researchers examining disputes over port privileges or franchise immunities, since a claim to exemption from this duty could turn on whether the claimant held Cinque Ports status. The Cinque Ports enjoyed an extensive body of customary privileges, and cayagium exemption was one piece of that larger framework.
Third, because cayagium was a Crown revenue incident, records of its collection or dispute would likely appear in Exchequer records, port books, and franchise pleadings rather than in common law court rolls. Researchers who encounter the term in a legal instrument and expect to find supporting case law will likely be disappointed — this was primarily an administrative and fiscal matter.
Fourth, the term is essentially obsolete. It has no application in modern English or American law. Its relevance is confined to historical legal research, medieval English fiscal history, and the interpretation of archaic instruments or charters.
Historical Dictionary Support
The four source dictionaries are in close agreement. All four define cayagium as a toll or duty for landing goods at a quay or wharf in old English law, and all four attribute the definition to Cowell's Interpreter — itself an early seventeenth-century legal glossary, which signals that even by Cowell's time the term was already a matter of historical record rather than active practice.
Bouvier adds the only substantive legal content beyond the bare definition: the Cinque Ports exemption. This detail is absent from both editions of Black's and from Burrill, making Bouvier the more useful starting point for any researcher who needs to understand cayagium in its operational legal context rather than merely identify what the word means.
Burrill's entry is notable for explicitly deriving the term from caya (his dictionary's entry for quay or key), which confirms the structural relationship between the place (the landing facility) and the duty (the charge for using it). Burrill also cross-references KAYAGE, suggesting researchers consult that entry for any additional treatment, though his own KAYAGE entry appears to duplicate rather than expand on the cayagium definition.
None of the historical dictionaries trace the duty's origins with any precision, identify the statutory or customary authority under which it was collected, or provide examples of instruments in which it appeared. Researchers requiring that level of detail will need to move beyond these dictionary sources entirely.
Jurisdictional Note
Cayagium is a term of English law only. It has no recognized equivalent in American law and no application in any contemporary jurisdiction.