Lewis Short
(adj.adj.adv.) : fērālis, e, adj.fero, from the carrying of the dead in funeral procession; cf. ferculum; cf. also Fest., Varr., Ov. ll. c. infra and v. Corss. Ausspr. 1, 467
* Of or belonging to the dead or to corpses, funereal (as an adj. only poet. and in post-Aug. prose): tu tamen exstincto feralia munera ferto,offerings to the dead,Ov. Tr. 3, 3, 81: sacra,Luc. 1, 616: cupressus,Verg. A. 6, 216; Ov. Tr. 3, 13, 21; cf.: ferale decus,i. e. the cypress,Sil. 10, 535: vittae,Ov. Ib. 103: reliquiae,i. e. the ashes of the dead,Tac. A. 2, 75: ferali carmine bubo Visa queri,Verg. A. 4, 462: Enyo,Petr. 120.
* In partic., of or belonging to the festival of the dead (celebrated annually in the month of February): tunc, cum ferales praeteriere dies,the days of the festival of the dead,Ov. F. 2, 34: tempus,id. ib. 5, 486: mensis, i. e. February, Col. poet. 10, 191.
* Transf., in gen., deadly, fatal, dangerous = funestus: tune, Licha, dixit, feralia dona tulisti?Ov. M. 9, 214: arma,Luc. 2, 260; 374: bellum,Tac. H. 5, 25: papilio,Ov. M. 15, 374; cf.: papilio pestifer,Plin. 11, 19, 21, § 65: Idus Mart. ferales Caesari,Plin. 18, 26, 65, § 237: annus,Tac. A. 4, 64: tenebrae,id. ib. 2,31: aula, a term applied to the abode of the great African serpent,Sil. 6, 216.—Comp.: feralior,Pacat. Pan. Theod. 46, 4.—Sup.: nefas feralissimum, Salv. Gub. Dei, 1, p. 23.—In neutr. adv.: ferale gemiscere,Claud. Rapt. Pros. 3, 130.— Hence, adv.: fērālĭter, fatally (late Lat.): ut leo feraliter invadit,Fulg. Myth. 3, 1 med.
Charlton T. Lewis, Charles Short, A Latin Dictionary