Definition
A repliant is a party to a lawsuit — typically the plaintiff — who files a replication. The term names the actor, as "replication" names the act: where replication is the plaintiff's formal answer to the defendant's plea or answer, the repliant is the person who makes it. The term appears almost exclusively in the context of common law and equity pleading and is rarely encountered outside historical sources.
Why It Matters in Research
This is a pure procedural label from the common law pleading system, and its significance is almost entirely historical. Modern civil procedure under notice pleading regimes (including the Federal Rules of Civil Procedure) eliminated the formal replication as a required pleading stage; with the act gone, the actor-label went with it. Researchers encountering "repliant" in case reports or treatises are almost certainly reading pre-twentieth-century materials — American sources pre-dating the Field Code reforms of the 1840s–1870s, or English sources predating the Judicature Acts of 1873–1875.
The key research trap: because the term is defined entirely by reference to the replication, a researcher who does not understand replication will not understand repliant. The two must be looked up together. In equity practice, the replication had a slightly different function than at common law (denial of the sufficiency of the answer, not merely its truth), so the repliant in equity records is operating in a procedurally distinct context from the repliant at law.
Also note: in practice, "plaintiff" and "repliant" often appear interchangeably in older sources, but they are not technically the same. The plaintiff becomes the repliant at a specific stage of pleading — after the defendant has filed a plea or answer. A researcher indexing or cataloging pleading records should treat these as stage-specific labels, not synonyms.
Historical Dictionary Support
Bouvier does not define "repliant" as a standalone entry but treats it as an actor-derivative of "replication," which he defines as the plaintiff's answer to the defendant's plea or answer. At common law, Bouvier distinguishes a general replication (a broad denial of the truth and sufficiency of the defendant's plea) from more specific forms. In equity, Story's Equity Pleading (cited by Bouvier) situates the replication as the plaintiff's avoidance or denial of the answer or defense. The repliant, across both contexts, is always the party going forward — the one whose allegations were originally challenged and who now responds to the defendant's challenge.
No major historical dictionary treats "repliant" as a term requiring extensive independent analysis; it is uniformly treated as a functional derivative. This reflects the term's character: it is a label, not a legal concept. Its absence from some historical dictionaries should not be read as indicating it was uncommon — it simply did not generate doctrinal controversy requiring extended treatment.
Jurisdictional Note
The term belongs to the common law pleading tradition and appears in both English and American historical sources. American usage largely disappeared with code pleading reform; English usage faded with Judicature Act reforms. Civilian and non-common-law systems have no direct equivalent.