society > law > administration of justice > court proceedings or procedure > trying or hearing of cause > try or hear cause [verb (transitive)] > maintain or vindicate by battle (3)
deraignc1325
transitive. Law. To prove, justify, vindicate; esp. to maintain or vindicate (a right, claim, etc.), by wager of battle; to dispute, contest (the…
derayc1325
Used for deraign, v.1
disreason1622
transitive. To prove, assert, vindicate; = deraign, v.1 1, 2.