a. Obs. or arch. [f. BRAIN sb. + -ISH1.] Headstrong, passionate.

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1530.  Palsgr., 307/1. Braynisshe, hedy, folisshe, selfe wylled.

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1602.  Shaks., Ham., IV. i. 11. And, in his brainish apprehension, killes The vnseene good old man.

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1603.  Drayton, Heroic. Ep., Pref. The Worke might in truth be judged Braynish.

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1850.  Blackie, Æschylus, I. 104. Thy son … whom unwittingly of life I reft, In a brainish moment.

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