Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
CADY
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
Ca-dia, in Gaelic, the house of God. There is a commonalty of Switzerland called Gotthespunt, or Casdee, i. e., the house of God. Cadie, in the Scottish, is an errand-boy, a messenger.
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English