Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
GRACE
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
Originally Le Gros ["the fat or large"], a name given to Raymond, one of the adherents of Strongbow, who was the ancestor of the family in Ireland.
Surname type: From given name or forename
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English