Cathleen

Cathleen is an Irish form of Katherine, itself derived from the Greek name Aikaterine, whose root meaning remains debated but is often associated with the Greek word katharos, meaning pure. The name reached Ireland through the Latin Katerina and became anglicized as Cathleen alongside the native Irish form Caitlín. It gained wider cultural recognition through W. B. Yeats's 1892 play Cathleen ni Houlihan, in which the name became a symbolic representation of Ireland itself. Related forms include Kathleen, Caitlin, Catherine, and Katarina.