The Collaborative International Dictionary of English v.0.48:

Debauch \De*bauch"\, v. t. & i. [imp. & p. p. Debauched; p.
   pr. & vb. n. Debauching.] [F. d['e]baucher, prob.
   originally, to entice away from the workshop; pref. d['e]-
   (L. dis- or de) + OF. bauche, bauge, hut, cf. F. bauge lair
   of a wild boar; prob. from G. or Icel., cf. Icel. b[=a]lkr.
   See Balk, n.]
   To lead away from purity or excellence; to corrupt in
   character or principles; to mar; to vitiate; to pollute; to
   seduce; as, to debauch one's self by intemperance; to debauch
   a woman; to debauch an army.
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         Learning not debauched by ambition.      --Burke.
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         A man must have got his conscience thoroughly debauched
         and hardened before he can arrive to the height of sin.
                                                  --South.
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         Her pride debauched her judgment and her eyes.
                                                  --Cowley.
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