The Collaborative International Dictionary of English v.0.48:

Conciliate \Con*cil"i*ate\ (?; 106), v. t. [imp. & p. p.
   Conciliated; p. pr & vb. n. Conciliating.] [L.
   conciliatus, p. p. of conciliare to draw or bring together,
   unite, from concilium council. See Council.]
   To win ower; to gain from a state of hostility; to gain the
   good will or favor of; to make friendly; to mollify; to
   propitiate; to appease.
   [1913 Webster]

         The rapacity of his father's administration had excited
         such universal discontent, that it was found expedient
         to conciliate the nation.                --Hallam.

   Syn: To reconcile; propitiate; appease; pacify.
        [1913 Webster]