Lewis & Short

Tmărŏs or -us, i, m., a mountain in Epirus, Verg. E. 8, 44.
Called also Tŏ-mărus, Plin. 4, 2, 3, § 6.
Hence, Tmă-rĭus, a, um, adj., of or belonging to Tmaros, Tmarian: Juppiter, Claud. B. Get. 18.