re·nege /rɪˈnɪg, ˈnɛg, ˈnig, ˈneg/
  (vi.)違例出牌,食言,毀約(vt.)否認,放棄,拒絕出牌違例
  Re·nege v. t.  To deny; to disown. [Obs.]
  All Europe high (all sorts of rights reneged)
  Against the truth and thee unholy leagued.   --Sylvester.
  Re·nege, v. i.
  1. To deny. [Obs.]
  3. Card Playing To revoke; to play a card that cannot legally be played according to the rules. [R.]
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  renege
       n : the mistake of not following suit when able to do so [syn: revoke]
       v : fail to fulfill a promise or obligation; "She backed out of
           her promise" [syn: renege on, renegue on, go back on]