Definitionen
1.AdjectiveOf, relating to, or derived from the given name of one's mother."In many countries, matronymic surnames can be adopted after the death of the father, although the process is very formal and lengthy."
2.AdjectiveBy extension; of, relating to, or derived from the given name of a female ancestor.
3.NounA surname or byname acquired from the given name of one's mother.
4.NounBy extension, a surname or byname acquired from the given name from a female ancestor.