Pure and graceful
A modern American compound name combining Kaylee and Ann. Kaylee is derived from the Greek word for pure, while Ann is a Hebrew-derived name meaning grace or favor.
Less common today
Kayleeann isn't in the latest US Top 1000. It last peaked at #5,787 in 2013.
US births per 5-year period, 1990βpresent (SSA data).