Pure; slender and fair
Caelyn is a modern American creation, likely formed by combining the popular 'Cae' sound with the 'lyn' suffix. It is often associated with the Irish name Caoilinn, meaning 'slender and fair,' or as a variant of Caitlin, which derives from the Greek name Katherine meaning 'pure.'
Less common today
Caelyn isn't in the latest US Top 1000. It last peaked at #1,256 in 2012.
US births per 5-year period, 1990βpresent (SSA data).