Modern creation, likely a blend of Jai and Anna
Jaionna is a modern American name likely created by combining the prefix 'Jai-' with the classic suffix '-onna'. While it does not have a singular ancient root, it draws from the Sanskrit 'Jai' meaning victory and the Hebrew 'Anna' meaning grace. It is part of a contemporary trend of rhythmic, multi-syllabic names ending in 'onna'.
Less common today
Jaionna isn't in the latest US Top 1000. It last peaked at #5,075 in 2009.
US births per 5-year period, 1990βpresent (SSA data).