Supplanter or jaybird; a modern invented combination.
Jaelynn is a contemporary American creation, likely formed by combining the name Jae or Jay with the popular suffix -lynn. While Jay can refer to the bird or serve as a diminutive of James (meaning 'supplanter'), the name as a whole is valued for its modern sound rather than ancient roots.
American social media personality
US births per 5-year period, 1990–present (SSA data).