The Collaborative International Dictionary of English v.0.48:

Preordain \Pre`or*dain"\, v. t. [Pref. pre + ordain: cf. L.
   praeordinare.]
   To ordain or appoint beforehand: to predetermine: to
   foreordain. --Milton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

preordain
    v 1: foreordain or determine beforehand [syn: predestine,
         foreordain, preordain]