Supplanter or God has heard
Jamyiah is a modern American creation, likely blending the classic Hebrew name Jamie (a diminutive of James) with the popular 'iah' suffix found in biblical names like Mariah or Jeremiah. It carries the traditional meaning of 'supplanter' from its Jacob/James roots, while the suffix adds a melodic, spiritual quality.
Less common today
Jamyiah isn't in the latest US Top 1000. It last peaked at #4,701 in 2015.
US births per 5-year period, 1990βpresent (SSA data).