背弃

背弃	bèi qì	to abandon / to desert / to renounce
背	bēi	variant of 背
背	bēi	to carry on one's back / (fig.) to bear; to shoulder (a burden, blame etc)
背	bèi	the back of a body or object / to turn one's back / to hide something from / to learn by heart / to recite from memory / (slang) unlucky / hard of hearing
弃	qì	to abandon / to relinquish / to discard / to throw away