The Collaborative International Dictionary of English v.0.48:

Abuse \A*buse"\, v. t. [imp. & p. p. Abused; p. pr. & vb. n.
   Abusing.] [F. abuser; L. abusus, p. p. of abuti to abuse,
   misuse; ab + uti to use. See Use.]
   1. To put to a wrong use; to misapply; to misuse; to put to a
      bad use; to use for a wrong purpose or end; to pervert;
      as, to abuse inherited gold; to make an excessive use of;
      as, to abuse one's authority.
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            This principle (if one may so abuse the word) shoots
            rapidly into popularity.              --Froude.
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   2. To use ill; to maltreat; to act injuriously to; to punish
      or to tax excessively; to hurt; as, to abuse prisoners, to
      abuse one's powers, one's patience.
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   3. To revile; to reproach coarsely; to disparage.
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            The . . . tellers of news abused the general.
                                                  --Macaulay.
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   4. To dishonor. "Shall flight abuse your name?" --Shak.
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   5. To violate; to ravish. --Spenser.
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   6. To deceive; to impose on. [Obs.]
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            Their eyes red and staring, cozened with a moist
            cloud, and abused by a double object. --Jer. Taylor.
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   Syn: To maltreat; injure; revile; reproach; vilify;
        vituperate; asperse; traduce; malign.
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WordNet (r) 3.0 (2006):

abused
    adj 1: used improperly or excessively especially drugs; "an
           abused substance"
    2: subjected to cruel treatment; "an abused wife" [syn:
       abused, ill-treated, maltreated, mistreated] [ant:
       unabused]