repudiate
词根词缀：
impudence n. 厚颜无耻
im 不 + pud 感到羞耻 + ence 表行为 → 厚颜无耻
impudent adj. 无礼的
im 不 + pud 感到羞耻 + ent 具有…性质的，关于…的 → 不知羞耻 → 无礼的
impudicity n. 不谦恭；无耻
im 不 + pud 感到羞耻 + icity 具备某种性质 → 不知羞耻 → 无耻
pudency n. 羞怯；谦逊
pud 感到羞耻 + ency 表状态 → 羞怯；谦逊
repudiate v. 拒绝；抛弃
re 反 + pudi〔= pud〕感到羞耻 + ate 做，造成，使… → 反过来让对方羞耻 → 拒绝〔别人〕
数据来源：新东方英语词汇速记大全
相关例句：
A new Irish government to be elected next spring is bound to repudiate the current arrangements.
将于明年春季选举产生的爱尔兰新政府，必将否定目前的安排。
He cannot avail himself of such acts as are beneficial to him and repudiate those which are detrimental.
他不能仅仅追认那些对他有利的行为而否认那些不利于他的行为。
It is the fear that Turkey is within sight of doing what has been asked of it that has led Mr Sarkozy and others to repudiate the original bargain.
正是由于担心土耳其有望达到要求，萨科齐和其他领导人才拒绝履行最初的协议。
When challenged today on these attacks, prime minister Gillard chose not to repudiate them.
面对这些指责，吉拉德总理选择不予驳斥。
She cannot repudiate its basic contours.
她不可能批判其基本框架。
Leaders urged people to turn out in large numbers to repudiate the violence
领导们力劝人们集体出面反对暴力。