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, often interpreted as 'supplanter'.
Less common today
Jamesa isn't in the latest US Top 1000. It last peaked at #4,966 in 1990.
US births per 5-year period, 1990βpresent (SSA data).