Source : Webster's Revised Unabridged Dictionary (1913)

Eventilate \E*ven"ti*late\, v. t. [L. eventilatus, p. p. of
   eventilare to fan. See {Ventilate}.]
   1. To winnow out; to fan. [Obs.] --Cockeram.

   2. To discuss; to ventilate. [Obs.] --Johnson.