go back on

== English == === Verb === go back on (third-person singular simple present goes back on, present participle going back on, simple past went back on, past participle gone back on) To be treacherous or faithless to; to betray. Synonyms: double-cross, sell out, stab in the back; see also Thesaurus:betray To fail to keep; to renege on. BBC News On Sunday Iranian President Mahmoud Ahmadinejad said his country would not go back on its nuclear programme. Used other than figuratively or idiomatically: see go,‎ back,‎ go back,‎ on. ==== Translations ====