countersue

verb

Etymology: Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Proto-Indo-European *-teros Proto-Italic *-teros Proto-Italic *komterosder. Proto-Italic *komterād Latin contrāder. Old French contre- Anglo-Norman countre-bor. Middle English counter- English counter- English sue English countersue From counter- + sue.

1. To sue a person or entity who is suing one.

   “Forrest later attacked Willis in New York, knocking him to the ground; lawsuits proliferated as Willis sued Forrest for assault, and Forrest countersued for libel.”