Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
HAGAR
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
Hagar, Hebrew, a stranger; one fearing. Hygar, in the Welsh, is amiable, pleasing. Hegar, Cor. Br., lovely; also, a bondman, a slave. 'Aigher, Gaelic, gladness, joy, mirth.
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English