The Collaborative International Dictionary of English v.0.48:

Stigmatize \Stig"ma*tize\, v. t. [imp. & p. p. Stigmatized; p.
   pr. & vb. n. Stigmatizing.] [F. stigmatiser, Gr. ?.]
   1. To mark with a stigma, or brand; as, the ancients
      stigmatized their slaves and soldiers.
      [1913 Webster]

            That . . . hold out both their ears with such
            delight and ravishment, to be stigmatized and bored
            through in witness of their own voluntary and
            beloved baseness.                     --Milton.
      [1913 Webster]

   2. To set a mark of disgrace on; to brand with some mark of
      reproach or infamy.
      [1913 Webster]

            To find virtue extolled and vice stigmatized.
                                                  --Addison.
      [1913 Webster]

WordNet (r) 3.0 (2006):

stigmatize
    v 1: to accuse or condemn or openly or formally or brand as
         disgraceful; "He denounced the government action"; "She was
         stigmatized by society because she had a child out of
         wedlock" [syn: stigmatize, stigmatise, brand,
         denounce, mark]
    2: mark with a stigma or stigmata; "They wanted to stigmatize
       the adulteress" [syn: stigmatize, stigmatise]