More info about the name "Edna"
Edna is an anglicization of Eithne. Eithne originates in Gaelic languages and means "little seed, kernel". Eithne and Sodelb were two sisters and Irish saints in the 6th century. In its original version, Eithne is a very rare feminine given name at present, especially in the United States. The name Edna has a Hebrew origin as well, meaning "one who renews".