vong ân bội nghĩa

== Vietnamese == === Etymology === Sino-Vietnamese word from 忘恩背義, composed of 忘恩 and 背義. === Pronunciation === (Hà Nội) IPA(key): [vawŋ͡m˧˧ ʔən˧˧ ʔɓoj˧˨ʔ ŋiə˦ˀ˥] (Huế) IPA(key): [vawŋ͡m˧˧ ʔəŋ˧˧ ʔɓoj˨˩ʔ ŋiə˧˨] ~ [vɔŋ˧˧ ʔəŋ˧˧ ʔɓoj˨˩ʔ ŋiə˧˨] (Saigon) IPA(key): [vawŋ͡m˧˧ ʔəŋ˧˧ ʔɓoj˨˩˨ ŋiə˨˩˦] ~ [jawŋ͡m˧˧ ʔəŋ˧˧ ʔɓoj˨˩˨ ŋiə˨˩˦] === Phrase === vong ân bội nghĩa (idiomatic) to forget and deny the favors of one's benefactor; to betray one's kindness