Lewis & Short

victōrĭālis, e, adj. [victoria], of or belonging to victory (late Lat.).

  1. I. Adj.: dies, day of victory, i. e. when victories are celebrated, Treb. Gall. 3: scipio, Cassiod. Var. 6, 1.
  2. II. Subst.: victōrĭālis, is, f., a plant, called also Idaea Daphne, App. Herb. 58; Isid. 10, 210.