Source : Webster's Revised Unabridged Dictionary (1913)

Propitiate \Pro*pi"ti*ate\, v. t. [imp. & p. p. {Propitiated};
   p. pr. & vb. n. {Propitiating}.] [L. propitiatus, p. p. of
   propitiare to propitiate, fr. propitius favorable. See
   {Propitious}.]
   To appease to render favorable; to make propitious; to
   conciliate.

         Let fierce Achilles, dreadful in his rage, The god
         propitiate, and the pest assuage.        --Pope.

Propitiate \Pro*pi"ti*ate\, v. i.
   To make propitiation; to atone.

Source : WordNet®

propitiate
     v : make peace with [syn: {appease}]