Mephitis, huius mephîtis, pen. prod. f. g. Virgil. A stinch or yll sanour which procecdeth of corrupt water mixed with earth and brimstone.Mephiticus.Stinking.
Lewis and Short: Latin dictionary
mĕphītis, is, f., a noxious, pestilential exhalation from the ground, mephitis. I.Lit.: saevamque exhalat opaca mephitim, Verg. A. 7, 84: sulphureae, Pers. 3, 99.— II. Personified: Mĕphītis (Mĕfi-tis), is, f., a goddess who averts pestilential exhalations, Tac. H. 3, 34; Plin. 2, 93, 95, 208; Inscr. Orell. 1795; cf. Serv. Verg. A. 7, 84: lucus Mephitis, Varr. L. L. 5, 7, 49 Müll.: aedes, Paul. ex Fest. 351, 3.