Slender or keeper of the keys
Kaelee is a modern American phonetic spelling variant of Kaylee. It likely derives from the Irish surname Ceallach, meaning slender, or as a combination of the popular name elements Kay and Lee.
Less common today
Kaelee isn't in the latest US Top 1000. It last peaked at #2,558 in 1999.
US births per 5-year period, 1990βpresent (SSA data).