exculpate
词根词缀：
culpability n. 有罪；有过失
culp 错，罪 + ability 状态 → 有罪；有过失
culpable adj. 有罪的；应受指责的
culp 错，罪 + able …的 → 有罪的；应受指责的
culprit n. 犯人
culp 错，罪 + rit → 犯人
exculpate v. 无罪释放
ex 出 + culp 错，罪 + ate 做，造成，使… → 从罪中解脱 → 无罪释放
inculpate v. 归罪
in 使… + culp 错，罪 + ate 使… → 使〔别人〕有罪 → 归罪
数据来源：新东方英语词汇速记大全
相关例句：
Happily, Mr Obama has the authority needed to lead the world towards a resolution: his hands are clean, and his lack of desire to exculpate his country is evident.
幸运的是，奥巴马拥有带领世界走向解决所需要的威信：他的双手是干净的、他无意为美国开脱是显而易见的。
The label "unconventional" is used not to exculpate Swinburne from the charge of immorality but to show that he is incompatible with but may be in advance of his times.
使用非正统一词，不是为史文朋开脱罪名，而是意在指出他不合于但可能先进于他所处的时代。
The diary is not the one who will always update, but it is only the note of someday, I begin to exculpate from my giving up in the midway.
“日记”绝非“天天记”而是“某天的记录”，我又开始为自己的“三分钟热度”辩解了。
He exculpate himself from stealing the money.
他自行辩白没有偷钱。
Only educational reformers and innovators find the necessity of educational philosophy, while those scholastics just need a few fair-sounding words to exculpate for existing practice.
只有教育改革家和革新者才感到需要教育哲学，那些墨守成规的人只是需要一点点动听的话语来点缀和辩解现存的实践。
Exculpate oneself from a charge of theft
辩白自己无盗窃嫌疑