Gracious; butterfly
A modern American blend likely combining John or Joan with the suffix -essa, or a variation of the Spanish name Vanessa. It carries the traditional Hebrew meaning of divine favor alongside the literary association with butterflies.
Less common today
Jonessa isn't in the latest US Top 1000. It last peaked at #7,393 in 2003.
US births per 5-year period, 1990βpresent (SSA data).