Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
GERARD
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
(origin: Teut.) From Gar, all, and ard, nature; apt, docile; one ready to do or learn, amiable.
Patronymica Britannica (1860)
GERARD. A Norman personal name, probably identical with Gerald. In the H.R. it is written Fil' Gerardi. The baronet's family derive their origin from the same ancestor as the Dukes of Leiuster and many other noble houses, viz., from Other, Castellan of AViudsor, temp. Edw. Confessor, whose grandson Gerard, or Gerald, had a son William Fitz-Gerard, who founded the Cheshire and Lancashire Gerards. The family have possessed Bryu, in the latter county, uuiuterruptedly from temp. Edw. III. Courthope's Debrett.
Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
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