I.to fall off, fall down (class.).
1. Lit.
A. In gen.: “decido de lecto praeceps,” Plaut. Cas. 5, 2, 48; so, “anguis decidit de tegulis,” Ter. Ph. 4, 4, 26: “poma ex arboribus decidunt,” Cic. de Sen. 19 fin.; cf.: “e flore guttae,” Ov. M. 9, 345: “equo,” Caes. B. G. 1, 48, 6; “for which ex equo (in terram),” Nep. Eum. 4; “and ab equo (in arva),” Ov. Ib. 259: “summo toro,” id. F. 2, 350: “arbore glandes,” id. M. 1, 106: “caelo,” Plin. 37, 10, 59, § 164; so, “caelo,” id. 2, 52, 53, § 138: “in terras imber,” Lucr. 6, 497; so, “imber,” Hor. Ep. 1, 14, 29: “celsae turres graviore casu,” id. Od. 2, 10, 11: “comae,” id. ib. 4, 10, 3 et saep.: “montium decidentium moles,” Plin. Ep. 8, 17, 3: “(volucris) decidit in terram,” Ov. M. 12, 569; “so in terras sidus,” id. ib. 14, 847: “in puteum foveamve auceps,” Hor. A. P. 458: “in lacum fulmen,” Suet. Galb. 8: “in dolia serpens,” Juv. 6, 432: “in casses praeda,” Ov. A. A. 2, 2: “in laqueos suos auceps,” id. Rem. Am. 502: “in turbam praedonum hic fugiens,” Hor. S. 1, 2, 42: “in praeceps,” Ov. M. 12, 339: “ad pedes tunica,” Suet. Aug. 94. —
B. Pregn. (like cado and concido), to fall down dead, to sink down, to die (in class. Lat. only poet.): “morbo decidunt,” Plaut. Trin. 2, 4, 143: “nos ubi decidimus, Quo pater Aeneas,” Hor. Od. 4, 7, 14: “scriptor abhinc annos centum qui decidit,” id. Ep. 2, 1, 36: “decidit exanimis vitamque reliquit in astris,” Verg. A. 5, 517; cf. Stat. Th. 8, 125; and id. ib. 9, 755: (nupta) Decidit; “in talum serpentis dente recepto,” Ov. M. 10, 10.
II. Trop., to fall, drop, fall away, fail, sink: “quanta de spe decidi!” Ter. Heaut. 2, 3, 9; “for which quanta spe decidi!” id. ib. 4, 8, 11; Suet. Oth. 5; “and a spe societatis Prusiae,” Liv. 37, 26: “ex astris,” Cic. Att. 2, 21, 4 (cf.: astrum, no. II. B. fin.): “ego ab archetypo labor et decido,” Plin. Ep. 5, 10, 1: “eo decidit ut exsul de senatore fieret,” has fallen so low, id. ib. 4, 11, 1: oculis captus in hanc fraudem decidisti (cf. καταπίπτειν), Cic. Verr. 2, 4, 45, § 101: “ad eas rei familiaris angustias decidit, ut, etc.,” Suet. Claud. 9 fin.; cf.: “huc decidisse cuncta, ut, etc.,” Tac. A. 3, 59: “ficta omnia celeriter tamquam flosculi decidunt,” perish, Cic. Off. 2, 12 fin.: “non virtute hostium sed amicorum perfidia decidi,” am fallen, defeated, Nep. Eum. 11 fin.: “an toto pectore deciderim,” wholly banished from her affections, Tib. 3, 1, 20 (cf. ἐκ θυμοῦ πεσέειν, Hom. Il. 23, 595): “qui huc deciderunt,” into this illness, Cels. 3, 21 fin.: “in hydropa,” id. ib. med.: in maximis necessitatibus, ad quas libidine deciderat, Schol. Juv. 5, 3.