Follower of Christ or anointed one
Chrisha is a modern American blend, likely a diminutive or creative variation of Christina or Christopher. It combines the traditional Greek root for 'anointed' with a soft, feminine suffix. While rare, it follows the pattern of names like Trisha or Keisha.
Less common today
Chrisha isn't in the latest US Top 1000. It last peaked at #8,230 in 1990.
US births per 5-year period, 1990βpresent (SSA data).