Obs. [Cf. BRAINISH.] Furious, mad.

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c. 1340.  Gaw. & Gr. Knt., 286. If any … Be so bolde in his blod, brayn in hys hede.

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1513.  Douglas, Æneis, XI. xvii. 73. He walxis brayne in furour bellicall.

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a. 1807.  J. Skinner, Amusem. Leis. Hours (1809), 44 (Jam.).

        Sanny soon saw the sutor slain,,
  He was his ain hawf-brither;
I wat right well he was fu’ brain,
  And fu’ could he be ither?

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