/ dɪˈvaʊt; NAmE / adjective
( of a person ) believing strongly in a particular religion and obeying its laws and practices :
a devout Christian / Muslim
► de·vout·ly adverb :
a devoutly Catholic region
She devoutly (= very strongly) hoped he was telling the truth.
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WORD ORIGIN
Middle English : from Old French devot , from Latin devotus devoted, past participle of devovere , from de- formally + vovere to vow.