Supplanter or follower
Jimya is a modern American creation, likely formed by blending the traditional masculine name Jim with the popular feminine suffix -ya. As a derivative of James, it ultimately traces back to the Hebrew name Jacob, which refers to one who follows or supplants.
Less common today
Jimya isn't in the latest US Top 1000. It last peaked at #10,589 in 2004.
US births per 5-year period, 1990βpresent (SSA data).