Slender or fair
Caliegh is a modern creative spelling of the Irish name Caoilinn or the phonetic Kaylee. It is derived from the Gaelic elements 'caol' meaning slender and 'fionn' meaning fair or white.
Less common today
Caliegh isn't in the latest US Top 1000. It last peaked at #9,901 in 2014.
US births per 5-year period, 1990βpresent (SSA data).