la'-di: This word should be taken in the sense of "mistress" in Isa 47:5,7 (Hebrew gebhereth) (so the American Standard Revised Version). In Jg 5:29; Eat 1:18 it is the translation of another Hebrew word (sarah), best rendered "princess" (so the Revised Version (British and American) in Esther, but not in Judges). In 2 Joh 1:1,5 it is the translation of kuria, which some interpreters regard as a proper name.
⇒See the definition of lady in the KJV Dictionary
See CYRIA; JOHN,THE EPISTLES OF ; ELECT LADY.