Gracious
Jawanna is a modern American creation, likely formed by combining the prefix 'Ja-' with the name Joanna. It ultimately derives from the Hebrew name Yochanan, meaning 'Yahweh is gracious'.
Less common today
Jawanna isn't in the latest US Top 1000. It last peaked at #6,375 in 1991.
US births per 5-year period, 1990βpresent (SSA data).