Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.
VALENTINE
As described in historical dictionaries
An Etymological Dictionary of Family and Christian Names (1857)
From the Latin Valentinus, a name derived from valens, able, puissant, brave.
Patronymica Britannica (1860)
VALENTINE. The baptismal name. This surname is sometimes corrupted in the South to Follington. H.R. Valentyn.
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