Lewis & Short

Vulturnālis (Volt-), e, adj., of or belonging to the god Vulturnus (perh. the same as Vertumnus).

  1. I. Adj.: flamen, Enn. ap. Varr. L. L. 7, § 45 Müll. (Ann. v. 125 Vahl.).
  2. II. Subst.: Vulturnālia, ĭum, n., the festival of Vulturnus, acc. to Fest. p. 379 Müll.