Answer: repudiates

AnswerCrossword Clue
REPUDIATESGoes back on a promise.
repudiatesRefuse to accept or be associated with
repudiates(esp. in the past or in non-Christian religions) Divorce (one's wife)
repudiatesDeny the truth or validity of
repudiatesREPUDIATE, to cast off, disown
repudiatesRefuse to fulfill or discharge (an agreement, obligation, or debt)