Slender or pure
Caelie is a modern phonetic spelling of the Irish name Kayley or Caoilainn, meaning slender. It is also frequently associated with the Greek name Katherine, meaning pure. In contemporary usage, it serves as a creative variant of the popular Kaylee family of names.
Less common today
Caelie isn't in the latest US Top 1000. It last peaked at #7,526 in 2003.
US births per 5-year period, 1990βpresent (SSA data).