Supplanter
Jamieon is a modern American elaboration of the name Jamie, which itself is a diminutive of James. It ultimately derives from the Hebrew name Jacob, referring to one who follows or replaces.
Less common today
Jamieon isn't in the latest US Top 1000. It last peaked at #8,481 in 2016.
US births per 5-year period, 1990–present (SSA data).
