Lewis & Short

con-tristo, āvi, ātum, 1, v. a. [tristis], to make sad or sorrowful, to sadden, afflict (except in Caelius, perh. not ante-Aug.).

  1. I. Lit.: contristavit haec sententia Balbum, Cael. ap. Cic. Fam. 8, 9, 5: prudens … non perturbatur nec contristatur nec timet, Sen. Ep. 85, 14.
    Of animals, Col. 8, 8, 4; of bees, id. 9, 14, 11.
  2. II. Transf.
    1. A. Of the weather, light, colors, etc., to make dark, render gloomy, to cloud, dim, darken, sadden, etc.: Auster pluvio frigore caelum, Verg. G. 3, 279; cf.: Sirius … laevo contristat lumine caelum, id. A. 10, 275; and: Aquarius annum, Hor. S. 1, 1, 36: aram silvā super opacā, Val. Fl. 3, 427: colores (opp. exhilarare), Plin. 35, 17, 57, § 198.
    2. B. Of vines, to injure, hurt, damage: vites caloribus, Col. 3, 2, 20; 3, 20, 1 al.