Lewis & Short

sternŭo, ŭi, 3, v. n. and a. [cf. Gr. πτάρνυσθαι, v. Curt. Griech. Etym. p. 696].

  1. I. Neutr., to sneeze: adorare aliquem, cum sternuerit, Plin. 2, 40, 40, § 107; 28, 6, 15, § 57; 19, 3, 15, § 40 (al. sternuto); Col. 7, 5, 18 Schneid. N. cr.
    1. * B. Transf., of a light, to sputter, crackle: sternuit et lumensternuit, et nobis prospera signa dedit, Ov. H. 19, 151 sq.
  2. II. Act., to sneeze out, give by sneezing: omen, Prop. 2, 3, 24; so, approbationem, Cat. 45, 9 and 18.