Kathleen

The name Kathleen is a feminine form of the name Catherine, which is derived from the Greek name Aikaterine. The meaning of Aikaterine is 'pure' or 'clear'.

The name Catherine has its roots in ancient Greek culture and was popularized by the early Christian saints and martyrs who bore this name. It eventually spread throughout Europe and became a popular name in various languages and cultures.

The name Kathleen emerged as an anglicized form of the Irish Caitlín, which is a Gaelic variation of the name Catherine. It gained popularity in Ireland and was later adopted in other English-speaking countries.

Over time, Kathleen has become a distinct name in its own right, while still maintaining its connection to the original Greek name Catherine and the meaning of purity or clarity.