Cailyn

The story behind Cailyn

Cailyn is a 21st-century American respelling of Caitriona or Caitlin, which derive from the Irish name Caitríona. The root traces to Latin Catharina (from Greek katharos, "pure" or "genuine"), which entered Irish tradition as Caitríona. The name became popularized in English-speaking regions through the variants Caitlin and Katelyn. Cailyn represents a contemporary spelling variation created by blending Caitlin with the fashionable "-lyn" suffix common in modern American naming conventions, reflecting trends that emerged prominently in the 1990s–2000s.