Supplanter or one who follows
A modern American elaboration of the name Jacqueline, which is the French feminine form of James. It ultimately derives from the Hebrew name Jacob, referring to the biblical story of the heel-grabber who supplants another.
Less common today
Jaquilla isn't in the latest US Top 1000. It last peaked at #7,879 in 1993.
US births per 5-year period, 1990βpresent (SSA data).