To identify themselves and the sub=clan they belong to, Somalis memorize their long lineage back a common ancestor.Women never adopt their husbands' patronym but keep theirs for life.
Examples: This system works for both boys and girls, except that after marriage, a woman takes her husband's given name as her middle name – her new middle name is no longer a patronymic.In Iceland, family names are unusual; Icelandic law favours the use of patronyms (and more recently, matronyms) over family names.Ethiopians and Eritreans have no concept of family name and surname.The full name is written as: First name (given name) followed by the father's name, and last by the grandfather's name.For example, Sara Yohannes Petros is Sara (given name) Yohannes (father's name) Petros (grandfather's name). The same is true for females; they do not take their husband's last name.Family names in many Celtic, English, Iberian, Scandinavian, Armenian and Slavic surnames originate from patronyms, e.g.
Wilson (son of William), Fitz Gerald (son of Gerald), Powell (from "ap Hywel"), Fernández (son of Fernando), Rodríguez (son of Rodrigo), Anderson or Andersen (son of Anders, Scandinavian form of Andrew), Carlson or Carlsen (son of Carl), Ilyin (of Ilya), Petrov (of Peter), Grigorovich (son of Grigory, Russian form of Gregory), Stefanović (son of Stefan, little Stefan), Mac Allister (from "mac Alistair", meaning son of Alistair, anglicized Scottish form of Alexander) and O'Conor (from "Ó Conchobhair", meaning grandson/descendant of Conchobhar).
For example, if a person's given name is Saravanan and his father's Krishnan, then the full name is K.
Saravanan and is seldom expanded, even in official records.
Although the practice is not universal, patronymic naming has been documented in the Zambezia province.
Somalis use their paternal grandfather's given name as their legal surname for documentation purpose.
The grandfather's name is usually only used in official documents. They go independently by their given name, followed by their father's name, and then their grandfather's name, even after marriage. As of 2010 the practice has largely dropped off with the use of just the father's last name as a surname.