equivocate [ikwi'vэke`it] (verb) to use ambiguous language with a deceptive intent
言葉を濁す、あいまいな言葉を使う

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"He interests me, I suppose, like the bulldog. And there is much good in him, too; but there is much in him that I would not like in - in the other way. You see, I have been thinking. He swears, he smokes, he drinks, he has fought with his fists (he has told me so, and he likes it; he says so). He is all that a man should not be - a man I would want for my - " her voice sank very low - "husband. Then he is too strong. My prince must be tall, and slender, and dark - a graceful, bewitching prince. No, there is no danger of my failing in love with Martin Eden. It would be the worst fate that could befall me."

"But it is not that that I spoke about," her mother equivocated. "Have you thought about him? He is so ineligible in every way, you know, and suppose he should come to love you?"

(Martin Eden --by Jack London)

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exculpate [e'kskΛlpe`it] (verb) exonerate; to clear of blame
〜を無罪にする、〜の無罪を証明する

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Justine also was a girl of merit and possessed qualities which promised to render her life happy; now all was to be obliterated in an ignominious grave, and I the cause! A thousand times rather would I have confessed myself guilty of the crime ascribed to Justine, but I was absent when it was committed, and such a declaration would have been considered as the ravings of a madman and would not have exculpated her who suffered through me.

(Frankenstein --by Mary Shelley)