Also found in: Legal, Financial.
Related to deraign: deranged
1. (Law) law to contest (a claim, suit, etc)
2. (Military) to arrange (soldiers) for battle
[C13: from Old French deraisnier to defend, from Vulgar Latin ratiōnāre (unattested) to reason]
deˈraignment, darˈraignment n
Past participle: deraigned