Simple past tense and past participle of redouble.(verb)
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Use "redoubled" in a sentence
"She received her with pleasure and gladness and seeing her in redoubled beauty and brilliancy rejoiced in her with exceeding joy, saying, “O my daughter, my heart was troubled about thee and in my uneasiness I offended against this my sister the Koranist with a speech that wounded her.”"
"Queen Anne of Austria always called him “cul pourri” (sore bottom), which nickname redoubled his bile, and possibly cost Marshal Marillac his life, and Marshal Bassompierre his liberty; but I cannot discover why certain persons should be greater liars than others."
"The horn calls redoubled, and the Mirror Lancers charged."