Of, relating to, or derived from the given name of one's mother. / By extension; of, relating to, or derived from the given name of a female ancestor.

A surname or byname acquired from the given name of one's mother. / By extension, a surname or byname acquired from the given name from a female ancestor.

plural of matronymic

In a matronymic manner.

plural of matronym

The name of someone's mother. / A matronymic surname.