Gracious
Jonice is a modern American elaboration of Joan or Jane, ultimately derived from the Hebrew name Yochanan. It combines the traditional 'Jo' prefix with the 'ice' suffix, similar to names like Bernice or Janice. It carries the same spiritual meaning of divine favor found in the John family of names.
Less common today
Jonice isn't in the latest US Top 1000. It last peaked at #8,284 in 1996.
US births per 5-year period, 1990βpresent (SSA data).