The Collaborative International Dictionary of English v.0.48:

Condone \Con*done"\, v. t. [imp. & p. p. Condoned; p. pr. &
   vb. n. Condoning.] [L. condonare, -donatum, to give up,
   remit, forgive; con- + donare to give. See Donate.]
   1. To pardon; to forgive.
      [1913 Webster]

            A fraud which he had either concocted or condoned.
                                                  --W. Black.
      [1913 Webster]

            It would have been magnanimous in the men then in
            power to have overlooked all these things, and,
            condoning the politics, to have rewarded the poetry
            of Burns.                             --J. C.
                                                  Shairp.
      [1913 Webster]

   2. (Law) To pardon; to overlook the offense of; esp., to
      forgive for a violation of the marriage law; -- said of
      either the husband or the wife.
      [1913 Webster]

WordNet (r) 3.0 (2006):

condone
    v 1: excuse, overlook, or make allowances for; be lenient with;
         "excuse someone's behavior"; "She condoned her husband's
         occasional infidelities" [syn: excuse, condone]

Moby Thesaurus II by Grady Ward, 1.0:

53 Moby Thesaurus words for "condone":
   abide with, accept, allow for, be big, be content with,
   be easy with, bear, bear with, blink at, brook, connive at,
   countenance, disregard, endure, forget, forgive, grin and abide,
   have, hear of, ignore, indulge, judge not, lean over backwards,
   leave unavenged, let go by, let it go, let pass, listen to reason,
   live with, make allowances for, not write off, obey, overlook,
   pardon, pass over, pocket the affront, put up with,
   regard with indulgence, remit, rise above, see both sides, shrug,
   shrug it off, stand for, stomach, submit to, suffer,
   suspend judgment, take, tolerate, view with indulgence, wink at,
   yield to