Gracious
Jaonna is a modern American variant of Joanna. It ultimately derives from the Hebrew name Yochanan, meaning 'Yahweh is gracious', which has evolved through Greek and Latin into many forms across various languages.
Less common today
Jaonna isn't in the latest US Top 1000. It last peaked at #8,873 in 2008.
US births per 5-year period, 1990βpresent (SSA data).