The Collaborative International Dictionary of English v.0.48:

Discommend \Dis`com*mend"\, v. t.
   1. To mention with disapprobation; to blame; to disapprove.
      [R.] --Spenser.
      [1913 Webster]

            By commending something in him that is good, and
            discommending the same fault in others. --Jer.
                                                  Taylor.
      [1913 Webster]

   2. To expose to censure or ill favor; to put out of the good
      graces of any one.
      [1913 Webster]

            A compliance will discommend me to Mr. Coventry.
                                                  --Pepys.
      [1913 Webster]