The Collaborative International Dictionary of English v.0.48:

Eventuate \E*ven"tu*ate\, v. i. [imp. & p. p. Eventuated; p.
   pr. & vb. n. Eventuating.]
   To come out finally or in conclusion; to result; to come to
   pass.
   [1913 Webster]

WordNet (r) 3.0 (2006):

eventuate
    v 1: come out in the end