/ ˌpætrəˈnɪmɪk; NAmE / noun
( technical ) a name formed from the name of your father or a male ancestor , especially by adding sth to the beginning or end of their name
—compare matronymic
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WORD ORIGIN
early 17th cent.: via late Latin from Greek patrōnumikos , from patrōnumos , from patēr , patr- father + onuma name.