Caitlin

Caitlin is an Irish form of Cateline, itself an Old French adaptation of Katherine, which derives from the Greek name Aikaterine. The ultimate meaning of the Greek root is debated, but it is commonly associated with katharos, meaning pure. The name has been used in Ireland since the medieval period, when French forms of Katherine were introduced following the Norman influence on the region. Variant forms and cognates include Kathleen, Katelyn, Catherine, and Katarina.