Caitlinn is a unique and charming feminine given name, derived from the Irish 'Cáit' which means 'pure' or 'pure one'. The name Caitlinn is often associated with the Irish goddess of fertility, Cailleach, reflecting its Gaelic roots and cultural heritage. It typically has three syllables - 'Kah-til-in', with the stress falling on the first syllable. Over time, various spellings have emerged including Caitlyn, Catelyn, Kaitlynn, and others, but Caitlinn remains a distinctive and classic version of this name. In literature, it's notably used in Diana Gabaldon's 'Outlander' series, adding to its recognition and allure.
"Caitlinn saw its popularity rise and fall over time, with a significant spike in usage between 1989 to 1994, and again around the year 2000."