Pure or grace
Kayonna is a modern American creation, likely blending the name Kay with the popular 'onna' suffix. It is often associated with the meaning 'pure' from its Greek roots in Katherine or 'grace' if linked to the Hebrew name Anna.
Less common today
Kayonna isn't in the latest US Top 1000. It last peaked at #4,770 in 2001.
US births per 5-year period, 1990βpresent (SSA data).