Son of James
A modern spelling variant of Jameson, which is an English patronymic surname meaning 'son of James'. The root name James is derived from the Hebrew name Jacob, meaning 'supplanter'.
Less common today
Jaymeson isn't in the latest US Top 1000. It last peaked at #2,771 in 2018.
US births per 5-year period, 1990βpresent (SSA data).