Lewis & Short

rŭtĭlo, āvi, ātum, 1, v. a. and n. [1. rutilus].

  1. I. Act., to make or color reddish: comas, Liv. 38, 17: capillos, Plin. 28, 12, 51, § 191; Suet. Calig. 47; Tac. H. 4, 61 al.
  2. II. Neutr., to be reddish; transf., to have a reddish glow (poet.): aurora, Att. ap. Varr. L. L. 7, § 83 Müll.: arma, Verg. A. 8, 529: vellera, Val. Fl. 5, 251: caelum, Vulg. Matt. 16, 3.
    Part. pres.: rutilans color, of a reddish glow, glowing redly, Plin. 16, 11, 22, § 53; so, arva rutilantia sanguineo gyro, Stat. Th. 11, 514.
    Comp.: rutilantior auro, Ven. Carm. 8, 7, 351.