Supplanter
A modern American invention, likely created by blending the traditional name Jacob or Jake with the popular feminine suffix -lyn. As a derivative of Jacob, it shares the Hebrew meaning of 'one who follows' or 'supplanter'.
Less common today
Jakelyn isn't in the latest US Top 1000. It last peaked at #3,969 in 2000.
US births per 5-year period, 1990βpresent (SSA data).