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Kathleen

/ˈkæθliːn/proper noun

A female given name, the English spelling of Irish Caitlín.

The Greek roots

Αἰκατερίνη
Aikaterínē
Catherine, sense unknown

Literally: the name Aikaterine, by way of Irish

The story of the word

Kathleen came into English from Irish Caitlín, which arrived through Old French Cateline from Latin Catharina and Greek Αἰκατερίνη. What Αἰκατερίνη meant to whoever first used it is unknown; the link with καθαρός, pure, is a later Christian reshaping that changed the spelling to fit the sense. The song that fixed the name in the popular ear, I'll Take You Home Again, Kathleen, was written in 1875 by an American schoolteacher, not by an Irishman.

How it travelled
Ancient Greek → Latin → Old French → Irish → English

Same family

KatherineCaitlinKateKaren

In a sentence

Kathleen ran the parish office for thirty years and knew where everything was.

Built on the same root

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