Likely a modern variation of Jeremiah or Miah
Kymiah is a contemporary American name, likely created by combining the 'Ky' prefix with the name Miah or as a creative variation of the Hebrew name Jeremiah. It follows the trend of adding melodic prefixes to established biblical or traditional roots. Because it is a modern invention, it does not have a single historical etymology but is often associated with the meanings of its component parts, such as 'exalted' or 'God is high'.
Less common today
Kymiah isn't in the latest US Top 1000. It last peaked at #7,661 in 2009.
US births per 5-year period, 1990βpresent (SSA data).