What is the meaning of -son?

Added to a stem (usually a given name or surname) to form a patronymic or matronymic surname.

Added to a stem (usually a given name or surname) to form a given name.

added to a given name (the father's or mother's) to form a patronymic or matronymic last name for the son of the person whose given name is used

-son

alternative form of -isoun

-son, used in patronymics

-son

verb suffix for the first-person plural preterite

verb suffix for the third-person plural preterite

Source: wiktionary.org