INTERPLACITARE

Definition

A Latin law term meaning to inquire into or determine a point that arises incidentally or collaterally in the course of a proceeding, before resolving the principal matter. In practice, the term is used as the Latin equivalent of the English "to interplead" — that is, to bring a collateral or intermediate question before the court for resolution when that question must be settled before the main dispute can be decided. The term belongs to the vocabulary of medieval and early common law pleading and is not in active use in modern legal practice. It survives chiefly in historical legal dictionaries and in scholarly commentary on the origins of interpleader.

Common Confusion

INTERPLACITARE should not be conflated with INTERPLEADER in its modern procedural sense. The Latin term describes a broader practice of resolving collateral questions incidentally arising in litigation. Modern interpleader is a specific equitable and statutory device with defined elements — a stakeholder, competing claimants, and a res. The Latin ancestor is the wider category; the modern doctrine is one specialized descendant. Treating the two as interchangeable when reading historical sources will produce anachronistic interpretations.

Why It Matters in Research

Researchers encountering *interplacitare* will almost always be working in medieval or early modern English legal sources — Year Books, Spelman's glossary, or treatises written in Law Latin. The term is not a term of art in any modern procedural code; its functional descendant is the doctrine of interpleader, now governed by statute and court rules in most jurisdictions. The key research trap is treating *interplacitare* and interpleader as identical. They share a root concept — resolving a collateral question between or among parties — but the modern doctrine of interpleader has a more specific and narrower procedural meaning than the broader Latin term suggests. *Interplacitare* as used by Spelman and cited by Burrill encompasses any incidental inquiry into a collateral point arising mid-proceeding; interpleader in its modern sense refers specifically to a device by which a stakeholder holding property claimed by two or more adverse parties compels those parties to litigate the claim among themselves. The older Latin term is the broader concept. When tracing the history of interpleader in legal briefs or historical scholarship, *interplacitare* will appear as the etymological anchor. Burrill explicitly links the two terms, making his dictionary the primary bridge between the Latin form and the English procedural term. Researchers should also consult Spelman's *Glossarium Archaeologicum*, which Burrill cites as the direct source authority for this entry.

Historical Dictionary Support

Burrill's Law Dictionary provides the only entry among the Law Mind shelf sources. Burrill derives the term from *inter* (between) and *placitare* (to plead or litigate) and cross-references it directly to his entry for INTERPLEAD, where he traces the English term through the French *entreplaider* back to the same Latin root. The structural relationship Burrill draws — Latin *interplacitare*, French *entreplaider*, English interplead — is a clean etymology of procedural vocabulary across legal languages. Burrill's characterization of the term as belonging to "ancient practice" is significant: even at the time of his writing, the term was historical rather than operative. The citation to Spelman is the trail's end in most research paths; Spelman's *Glossarium* (published posthumously, 1664) is the primary source for the Latin form in English legal literature. No other Law Mind shelf dictionary covers this term, which itself reflects the term's status as a relic of legal Latin with no continuing independent life in common law practice.

Encyclopedia Cross-Reference

See Law Mind Encyclopedia: INTERPLEADER

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