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]

WordNet (r) 3.0 (2006):

mollify
    v 1: cause to be more favorably inclined; gain the good will of;
         "She managed to mollify the angry customer" [syn: pacify,
         lenify, conciliate, assuage, appease, mollify,
         placate, gentle, gruntle]
    2: make more temperate, acceptable, or suitable by adding
       something else; moderate; "she tempered her criticism" [syn:
       temper, season, mollify]
    3: make less rigid or softer