Hatty

Hatty is an English diminutive of Harriet, which itself is an English feminine form of Harry, the medieval vernacular form of Henry. Henry derives from the Germanic name Heimirich, composed of the elements heim, meaning home, and ric, meaning power or ruler. Hatty enjoyed quiet use in the nineteenth century alongside its fuller form Harriet. Related forms include Hattie, Harriet, and Henrietta.