Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
GERRY
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
A corruption of Gerard (which see). Gairdeach, the d silent, from Gairde, Gaelic, festive, joyful.
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English