M / Marrŭbĭum
noun

Marrŭbĭum

gen. Marrŭbii · gender neuter · decl. 2nd
a city in Latium, the capital of the Marsians; S. Benedetto
a city in Latium, the capital of the Marsians, now S. Benedetto, Sil. 8, 507.— Hence,
adj., of; belonging to Marrubium, Marrubian; the inhabitants of Marrubium
Marrŭbĭus, a, um, adj., of or belonging to Marrubium, Marrubian: Marrubia gens, Verg. A. 7, 750.—In plur. subst.: Marrŭvĭi or Marrŭvīni, ōrum, m., the inhabitants of Marrubium, Plin. 3, 12, 17, § 106; cf. Inscr. Orell. 3149.