Patronymic

A patronym, or patronymic, is a component of a personal name based on the given name of one's father, grandfather (i.e., an avonymic), or an even earlier male ancestor. A component of a name based on the name of one's mother or a female ancestor is a matronymic. Each is a means of conveying lineage. In such instances, a person is usually referred to by their given name, rather than their patronymic.

Patronymics are still in use, including mandatory use, in many countries worldwide, although their use has largely been replaced by or transformed into patronymic surnames. Examples of such transformations include common English surnames such as Johnson (son of John).

In many areas around the world, patronyms predate the use of family names. Family names in many Celtic, English, Iberian, Scandinavian, Armenian and Slavic surnames originate from patronyms, e.g. Wilson (son of William), FitzGerald (son of Gerald), Powell (from "ap Hywel"), Fernández (son of Fernando), Rodríguez (son of Rodrigo), Anderson (son of Anders, Scandinavian form of Andrew) (son of Carl), Ilyin (of Ilya), Petrov (of Peter), Grigorovich (son of Grigory, Russian form of Gregory), Stefanović (son of Stefan, little Stefan), MacAllister (from "mac Alistair", meaning son of Alistair, anglicized Scottish form of Alexander) and O'Connor (from "Ó Conchobhair", meaning grandson/descendant of Conchobhar). Other cultures which formerly used patronyms have switched to the more widespread style of passing the father's last name to the children (and wife) as their own.

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