Simple past tense and past participle of accede.(verb)
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Use "acceded" in a sentence
"_ "acceded" _ to the Constitution, or to the constitutional compact, as it is called."
"At the Trident Conference in Washington the month before, Churchill acceded to a cross-Channel invasion of France in May 1944 and Roosevelt agreed to more operations in the Mediterranean after the Sicily landing."
"Finally Karzai acceded to the American pressure and agreed to the runoff, which in any event his challenger Dr. Abdullah had never had the votes to win."