Definition
A Latin term appearing in old legal records and instruments, denoting a perch — a traditional unit of linear and area measurement used in land surveying and conveyancing. In its primary sense, pertica refers to the rod or pole itself (the physical measuring instrument or the unit derived from it), typically understood as equivalent to the standard perch of approximately 16½ feet in linear measure, or 30¼ square yards as a unit of area. The related form PERTICATA (also spelled Particata) denotes a perch of land as a quantity of area — that is, the amount of ground measured by or expressed in perches. Both terms surface principally in medieval Latin records, charters, and surveys, including English and Scottish land grants, extent rolls, and inquisitions.
Common Confusion
Pertica (the rod or perch unit) and perticata (a perch of land as an areal quantity) are closely related but distinct: the former names the measure itself, the latter names the thing measured. Researchers encountering either form in a document should check whether the context calls for a linear dimension (a boundary description) or an areal quantity (the size of a holding). Additional confusion arises because the perch was not a perfectly uniform measure across time and place — local custom occasionally fixed the perch at values other than the standard 16½ feet, so a pertica in one county record may not equal a pertica in another.
Why It Matters in Research
Researchers working with medieval English or Scottish land records — Domesday-era surveys, inquisitions post mortem, monastic cartularies, extent rolls, and early conveyancing instruments — will encounter pertica and perticata as routine units of land description. The terms carry practical significance in two research contexts.
First, boundary and acreage reconstruction: When reconstructing the size or boundaries of a historic holding, accurate translation of pertica is essential. Treating it as a modern unit without checking for local variation can produce materially wrong acreage figures. Some jurisdictions or manors used a longer "customary perch" (sometimes 18 or 21 feet), meaning a perticata in those records represents more land than the standard calculation would suggest.
Second, Scottish legal records: The form perticata appears specifically in Scottish legal Latin as documented by Skene's De Verborum Significatione, an indispensable reference for reading early Scots legal instruments. Researchers in Scottish land history should have Skene accessible when working with any Latin record using agrarian measure terms, as Scottish usage sometimes diverged from English convention.
The term itself has no continuing life in modern legal instruments — it is encountered exclusively in historical sources. Its significance is therefore almost entirely interpretive and paleographic rather than doctrinal.
Historical Dictionary Support
Burrill's Law Dictionary provides the core entry, citing Spelman's Glossarium Archaeologicum for the general Latin meaning (a perch; a measure of land) and Skene's De Verborum Significatione for the Scottish legal form perticata. Both citations are appropriate: Henry Spelman's Glossarium remains a foundational authority for medieval Latin legal and agrarian terminology in English records, and Sir John Skene's De Verborum Significatione (1597) is the standard reference for legal Latin as used in early Scottish practice. Burrill's entry is brief, as befits a term with limited doctrinal content, but the citations anchor it reliably to authoritative primary glossaries.
No significant divergence exists across historical dictionaries on this term — it is a straightforward Latin survival in records vocabulary, not a contested legal concept. What historical sources generally do not address is the practical problem of local perch variation, which is better handled by historical metrology sources than by law dictionaries.
Jurisdictional Note
Pertica appears in both English and Scottish historical records, though the forms and the glossarial authorities differ. English records are best read against Spelman; Scottish records against Skene. Researchers should not assume uniform measurement standards across these two jurisdictions or across different time periods within either.
Encyclopedia Cross-Reference
Law Mind Encyclopedia — Land Measurement
Law Mind Encyclopedia — Agrarian Law
Law Mind Encyclopedia — Historical English Land Records