The Collaborative International Dictionary of English v.0.48:

Mollify \Mol"li*fy\, v. t. [imp. & p. p. Mollified; p. pr. &
   vb. n. Mollifying.] [F. mollifier, L. mollificare; mollis
   soft + -ficare (in comp.) to make. See Enmollient, Moil,
   v. t., and -fy.]
   1. To soften; to make tender; to reduce the hardness,
      harshness, or asperity of; to qualify; as, to mollify the
      ground.
      [1913 Webster]

            With sweet science mollified their stubborn hearts.
                                                  --Spenser.
      [1913 Webster]

   2. To assuage, as pain or irritation, to appease, as excited
      feeling or passion; to pacify; to calm.
      [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

32 Moby Thesaurus words for "mollifying":
   appeasing, calming, conciliatory, cradling, demulcent, dreamy,
   drowsy, easing, emollient, gentling, hushing, irenic, loosening,
   lulling, pacific, pacificatory, pacifying, placative, placatory,
   propitiative, propitiatory, quietening, reconciliatory, relaxing,
   restful, rocking, softening, soothful, soothing, stilling,
   subduing, tranquilizing