Meaning

noun a claim filed in opposition to another claim in a legal action

verb set up a claim in opposition to a previous claim

originEtymology 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 claim English counterclaim From counter- + claim.

Etymology from Wiktionary, CC BY-SA 3.0