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montŭōsus or montōsus, a, um, adj. [mons], mountainous, full of mountains (class.): regio, Cic. Planc. 9, 22: cum locis ipsis delectemur, montuosis etiam, id. Lael. 19, 68: loci, id. Part. 10, 36: frutex, Plin. 12, 13, 28, § 48.
Form montosa, Verg. A. 7, 744.
Subst.: montŭōsa, ōrum, n., mountain regions, mountainous parts: montuosa Ciliciae, Plin. 11, 53, 116, § 280; Vulg. Jer. 17, 26.