Lewis & Short

† dĭbăphus, a, um, or us, um, adj., = δίβαφος,

  1. I. double dyed (once with scarlet and then with purple): purpura, Plin. 9, 39, 63, § 137; 21, 8, 22, § 45.
    Because the Roman magistrates wore garments striped with purple,
  2. II. Trop.: dibaphus, i, f. ( = ἡ δίβαφος, sc. ἐσθής), the purple staterobe of a high magistrate: Curtius noster dibaphum cogitat, sed eum infector moratur, Cic. Fam. 2, 16 fin. (id. Att. 2, 9, 2, written as Greek).