Modern invented name, likely a blend of Jacob and Quari.
Jaquari is a contemporary American name without a single ancient etymology. It is likely a creative blend combining the popular prefix 'Ja-' (as in Jacob or Jaden) with the suffix '-quari', possibly influenced by names like Shaquille or the Arabic-rooted name Qari.
Less common today
Jaquari isn't in the latest US Top 1000. It last peaked at #4,443 in 2005.
US births per 5-year period, 1990βpresent (SSA data).