/ ɪnˈfætʃueɪtɪd; NAmE / adjective
infatuated (with sb/sth) having a very strong feeling of love or attraction for sb/sth so that you cannot think clearly and in a sensible way
SYN besotted :
She was completely infatuated with him.
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WORD ORIGIN
mid 16th cent.: from Latin infatuat- made foolish, from the verb infatuare , from in- into + fatuus foolish + -ed .