Definition
An obsolete Law French term for pleas or pleadings — the formal contested matters brought before a court. The word is a Norman French rendering of the Latin *placita*, the plural of *placitum*, meaning a court proceeding, plea, or judicial determination. In medieval English legal usage, *plaiz* referred to the pleas or causes entertained by a court, encompassing both the proceedings themselves and the matters in dispute.
Why It Matters in Research
Researchers encountering *plaiz* will find it almost exclusively in early Norman-period legal texts and compilations, particularly materials associated with the laws attributed to William the Conqueror. Burrill's citation to *LL. Gul. Cong.* — the Leges Guillelmi Conquestoris — situates the term squarely in post-Conquest Anglo-Norman legal Latin and French, a transitional period when English legal language was absorbing heavily from both Norman French and ecclesiastical Latin.
The practical research trap is terminological fragmentation: the same underlying concept — a plea, a court proceeding, a contested cause — appears across the historical corpus in multiple forms: *plaiz* (Law French), *placita* (Latin), *pleas* (Middle English), and eventually *pleas* in modern English. A researcher working across this period must track all variants, as copyists and compilers were not consistent. A document may shift between forms mid-text.
The term also signals jurisdictional context. *Placita* in the Norman-period sources typically distinguished between *placita coronae* (pleas of the Crown) and *placita communia* (common pleas) — a distinction that would eventually harden into the institutional separation of the Court of King's Bench from the Court of Common Pleas. When *plaiz* appears without qualification, context determines which category is intended.
Researchers using Law Mind sources for pre-1300 English legal history should treat *plaiz* as a pointer term — its appearance signals proximity to foundational jurisdictional and procedural material, and cross-referencing to the Latin *placita* tradition will almost always be necessary to complete the analysis.
Historical Dictionary Support
Burrill's Law Dictionary provides the core entry, glossing *plaiz* as Law French for *placita* and anchoring it to the Leges Guillelmi Conquestoris. This is a sparse but accurate entry — Burrill correctly identifies the linguistic register and the source, though the entry offers no elaboration on the procedural significance of the term or the *placita coronae* / *placita communia* distinction that *placita* and its French variants carried in practice.
The brevity here is characteristic of how Burrill treats pure Norman-period Law French vocabulary: identification and Latin correspondence, but little doctrinal context. Researchers should not read the thinness of this entry as reflecting thinness of the term's historical importance. *Placita* and its vernacular equivalents were among the most structurally significant words in early English legal administration. What Burrill provides is a finding aid; the doctrinal content must be sourced elsewhere.
Other historical dictionaries (Blount, Cowell, Jacob) treat *placita* and *plea* at greater length under those headings but do not separately headword the Law French *plaiz*, consistent with the term's narrow period of active use.