Likely a modern variant of Mariah or Kyra
Kariah is a contemporary American name, likely created as a blend of the prefix 'Ka-' with the name Mariah, or as an elaboration of Kyra. While its exact roots are fluid, it is often associated with meanings like 'beloved' or 'pure' depending on the parent names it draws from.
Less common today
Kariah isn't in the latest US Top 1000. It last peaked at #4,613 in 2013.
US births per 5-year period, 1990βpresent (SSA data).