The Collaborative International Dictionary of English v.0.48:

Delirate \De*lir"ate\, v. t. & i. [L. deliratus, p. p. of
   delirare. See Delirium.]
   To madden; to rave. [Obs.]
   [1913 Webster]

         An infatuating and delirating spirit in it. --Holland.
   [1913 Webster]