The Collaborative International Dictionary of English v.0.48:

Pamper \Pam"per\, v. t. [imp. & p. p. Pampered; p. pr. & vb.
   n. Pampering.] [Cf. LG. pampen, slampampen, to live
   luxuriously, pampe thick pap, and E. pap.]
   [1913 Webster]
   1. To feed to the full; to feed luxuriously; to glut; as, to
      pamper the body or the appetite. "A body . . . pampered
      for corruption." --Dr. T. Dwight.
      [1913 Webster]

   2. To gratify inordinately; to indulge to excess; as, to
      pamper pride; to pamper the imagination. --South.
      [1913 Webster]

WordNet (r) 3.0 (2006):

pamper
    v 1: treat with excessive indulgence; "grandparents often pamper
         the children"; "Let's not mollycoddle our students!" [syn:
         pamper, featherbed, cosset, cocker, baby,
         coddle, mollycoddle, spoil, indulge]

Moby Thesaurus II by Grady Ward, 1.0:

40 Moby Thesaurus words for "pamper":
   baby, care for, caress, cater to, cherish, cocker, coddle, cosset,
   cradle, cultivate, dandle, dry-nurse, favor, feed, fondle, foster,
   give way to, gratify, humor, indulge, lavish care on, mollycoddle,
   mother, much, nourish, nurse, nurture, oblige, overindulge, pet,
   please, regale, satisfy, spoil, spoon-feed, suckle, sustain,
   tickle, wet-nurse, yield to