valentine/ˈvæləntaɪn/EtymologyFrom Latin Valentīnus, a patronymic from Valēns (Roman cognomen), itself nominalized from vālens (“strong, healthy”) + -īnus (“-ine”). Doublet of Valentinus, Valentino, Valentina, and Valentini.nameSaint Valentine, a 3rd-century Christian martyr.Synonym of Valentinus, a 2nd-century Egyptian gnostic.A unisex given name from Latin.; A male given name from Latin in quiet but steady use since the 16th century.A unisex given name from Latin.; A female given name from Latin occasionally borrowed from French.An English and Scottish surname derived from the male given name.A placename:; A number of places in the United States:; A census-designated place in Mohave County, Arizona.nounAn expression of affection, especially romantic affection, usually in the form of greeting card, gift, or message given the object of one's affection, especially on February 14th.“Such an extravagant valentine was unexpected.”A person to whom a valentine is given or from whom it is received, especially on February 14th.“Won't you be my valentine?”