renege

Từ điển Oxford Advanced Learner 8th

re·nege [renege reneges reneged reneging] BrE [rɪˈniːɡ] NAmE [rɪˈniːɡ] BrE [rɪˈneɪɡ] NAmE [rɪˈneɪɡ] verb intransitive ~ (on sth) (formal)
to break a promise, an agreement, etc.
Syn: go back on
•to renege on a deal/debt/contract, etc.
Verb forms:

Word Origin:
mid 16th cent. (in the sense ‘desert’): from medieval Latin renegare, from Latin re- (expressing intensive force) + negare ‘deny’.

• Từ đồng nghĩa / Synonyms:
  revoke, renege on, renegue on, go back on