Gracious
Jaeonna is a modern American creation, likely a combination of the name Jae and the suffix -onna. It is often interpreted as a creative variant of Gianna or Joanna, which both derive from the Hebrew name Yochanan, meaning 'God is gracious'.
Less common today
Jaeonna isn't in the latest US Top 1000. It last peaked at #11,985 in 2011.
US births per 5-year period, 1990βpresent (SSA data).