Caitlyn

Caitlyn is an English spelling variant of Caitlín, the Irish form of Katherine, which itself derives from the Greek name Aikaterine. The ultimate root of Aikaterine is debated, with proposed connections to the Greek word katharos, meaning pure, though this may be a later folk etymology. The name gained widespread modern popularity in part through cultural exposure in English-speaking countries. Related forms include Caitlin, Katelyn, Katherine, and Catherine.