Patronymic

Part of speech: noun (n.)

A modification of the father's name borne by the son; a name derived from that of a parent or ancestor; as, Pelides, the son of Peleus; Johnson, the son of John; Macdonald, the son of Donald; Paulowitz, the son of Paul; also, the surname of a family; the family name. M. A. Lower.

Part of speech: adjective (a.)

Derived from ancestors; as, a patronymic denomination.