matronymic
noun/ˌmætrəˈnɪmɪk/
/ˌmætrəˈnɪmɪk/
(specialist)- a name formed from the name of your mother or a female ancestor, especially by adding something to the beginning or end of their name compare patronymicWord Originlate 18th cent.: from Latin mater, matr- ‘mother’, on the pattern of patronymic.
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matronymic