Darrayne vs Deraign - What's the difference?

Darrayne is an alternative form of deraign.

is that darrayne is while deraign is (legal|obsolete|transitive) to prove or to refute by proof, especially on threat of combat.

(head)

* darrayne * derain

(en verb)

(legal, obsolete, transitive) To prove or to refute by proof, especially on threat of combat.

(obsolete) To engage in (battle, combat etc.).

*1590 , Edmund Spenser, The Faerie Queene , I.iv:

*:Therewith they gan to hurtlen greedily, / Redoubted battaile ready to darrayne , / And clash their shields, and shake their swords on hy [...].