Simple past tense and past participle of demur.(verb)
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Use "demurred" in a sentence
"Mr. McCain demurred, then referred to his interview last weekend at Saddleback church by the Rev. Rick Warren, which was well received by conservatives."
""Yes; but so poorly, so miserable," Courbertin demurred."
"Act. The plaintiff demurred, that is to say, admitted Sir Edward's plea to be true in fact, but denied that it was a sufficient answer."