deraign verb¹ trans. [dɪ'reɪn] obsolete exc. Hist. ME.
[Anglo-Norman derainer, dereiner, Old French deraisnier, dereis- from Proto-Romance, from Latin de- DE- 1 + ratio(n-) account, REASON noun¹.]
1. Law. Prove, justify, or vindicate (a claim etc.), esp. by wager of battle; dispute (the claim of another) thus. ME.

2. Maintain a claim to; claim the possession of, esp. by wager of battle. ME.

3. Decide (a claim or dispute) by judicial argument or by wager of battle; determine. ME.

4. a. deraign battle, deraign combat, etc., maintain a wager of battle or single combat in vindication of a claim, right, etc. Also (pseudo-arch.), do battle; order, arrange a battle. LME.
b. Dispose in battle array; order. pseudo-arch. L16-E18.

[TahlilGaran] English Dictionary ▲

deraign verb² trans. [dɪ'reɪn] E16.
[Old French desregner var. of desrengier (mod. déranger) put out of ranks, DERANGE.]
1. Put into disorder; derange. E16-E18.

2. In pass. Be discharged from (religious) orders. obsolete exc. Hist. L16.

[TahlilGaran] English Dictionary ▲