Kathleen

Source: Irish

Root Word: Caitlín

Derived From: Catherine

Meaning: Kathleen is the Anglicized form of the Irish name Caitlín, which is derived from the Greek name Aikaterine, meaning ‘pure’.

Popularity History: Kathleen was very popular in English-speaking countries in the early to mid-20th century, especially in the United States and the United Kingdom.