Supplanter
A feminine elaboration of the name James, which is derived from the Hebrew name Jacob. It carries the traditional meaning of one who follows or replaces another. While rare, it follows the American naming tradition of adding the Latinate suffix -ia to classic masculine names.
Less common today
Jamesia isn't in the latest US Top 1000. It last peaked at #3,066 in 1995.
US births per 5-year period, 1990βpresent (SSA data).