Origin: Latin

From Old French Tifinie, Tiphanie, from Latin Theophania (“Epiphany”), from Ancient Greek θεο- (theo-, “god”) (combining form of θεός (theós, “god”)) + φαίνω (phaínō, “I shine, appear”). Doublet of theophany. The given name (from circa 12th century) was usually given to girls born at Epiphany. The surname (from late 13th century) is a dialectal variant of the surname Tiffin, which derives from the given name variant Tiffania. In modern times, the given name has been (re)popularized by the surname borne by Charles Lewis Tiffany, founder of jewelry company Tiffany & Co.

Etymology: Wiktionary (CC-BY-SA)