Supplanter or twin
A modern variation likely derived from the Hebrew name Jacob, meaning 'supplanter', or influenced by the Arabic name Jamil, meaning 'beautiful'. It is often used as a creative variant of Jermaine, which has roots in the Latin name Germanus, meaning 'brother' or 'from Germany'.
Less common today
Jamaine isn't in the latest US Top 1000. It last peaked at #1,856 in 1991.
American professional boxer
American football running back
US births per 5-year period, 1990βpresent (SSA data).