{ } v. t. [ OF. deraisnier to explain, defend, to maintain in legal action by proof and reasonings, LL. derationare; de- + rationare to discourse, contend in law, fr. L. ratio reason, in LL., legal cause. Cf. Arraign, and see Reason. ] 1. To make ready to fight; to array. [ Obs. ] [ 1913 Webster ]

Darrain your battle, for they are at hand. Shak. [ 1913 Webster ]

2. To fight out; to contest; to decide by combat. [ Obs. ] “To darrain the battle.” Chaucer . [ 1913 Webster ]