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Douglas Harper's Etymology Dictionary
patronym

1834, from Greek patronymos, from patr-, comb. form of pater "father" (see father (n.)) + -onym "name" (see name (n.)).

Wiktionary
patronym

n. 1 The name of someone's father. 2 A patronymic surname.

Usage examples of "patronym".

He ate in the Lotus and of its patronym, and was lulled into blissful peace with the other fortunate mariners.

Dutch so well the pleasure of knowing my official label, I gave him my patronym instead.