Matronymics is a term used to refer to the naming convention in which a child's surname is derived from their mother's name. While the use of matronymics is not as common as the use of patronymics (in which the father's name is used), it has a long history in various cultures. Despite its limited use in the English language, there are several synonyms for matronymics including matronymy, mother-name, mother-naming, and mother-surnaming. These synonyms can be used interchangeably to refer to the practice of naming a child based on the mother's name. Matronymics and its synonyms serve as a reminder of the diverse naming conventions across the world.