late 14c., "syrupy drink in which medicine is given," from Old French julep (14c.), from Medieval Latin julapium, from Arabic julab, from Persian gulab "a sweet drink," also "rose water," from gul "rose" (related to Greek rhodon, Latin rosa; see rose (n.1)) + ab "water," from PIE root *ap- (2) "water" (for which see water (n.1)). As the name of an iced, sugared alcoholic drink flavored with mint, 1787, American English.
