/ pɜːˌsəʊnə nɒn ˈgrɑːtə; nəʊn; NAmE pɜːrˌsoʊnə nɑːn; noʊn/ noun
[ U ] (from Latin ) a person who is not welcome in a particular place because of sth they have said or done, especially one who is told to leave a country by the government
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WORD ORIGIN
Latin , from persona ( Latin , literally mask, character played by an actor ) + non not + grata , feminine of gratus pleasing.