Notorious was adopted into English in the 16th century from Medieval Latin notorius, itself from Late Latin's noun notorium, meaning "information" or "indictment." "Notorium," in turn, derives from the Latin verb noscere, meaning "to come to know." Although "notorious" can be a synonym of "famous," meaning simply "widely known," it long ago developed the additional implication of someone or something unpleasant or undesirable. The Book of Common Prayer Offices of 1549 includes the first known use of the unfavorable meaning in print, referring to "notorious synners."
