The Collaborative International Dictionary of English v.0.48:

Pampered \Pam"pered\, a.
   Fed luxuriously; indulged to the full; hence, luxuriant; as,
   pampered children. "Pampered boughs." --Milton. "Pampered
   insolence." --Pope. -- Pam"pered*ness, n. --Bp. Hall.
   [1913 Webster]