Source : Webster's Revised Unabridged Dictionary (1913)

Personalize \Per"son*al*ize\, v. t. [imp. & p. p.
   {Personalized}; p. pr. & vb. n. {Personalizing}.]
   To make personal. ``They personalize death.'' --H. Spencer.

Source : WordNet®

personalize
     v : make personal or more personal; "personalized service" [syn:
          {personalise}, {individualize}, {individualise}] [ant: {depersonalize},
          {depersonalize}]