tĕnē^brĭcus — Lewis & Short
tĕnē^brĭcus, a, um, adj.tenebrae,
I dark, gloomy (very rare): nam te in tenebricā saepe lacerabo fame Clausum, Pac. ap. Non. 179, 14 (Trag. Rel. v. 158 Rib.):
Tartarea tenebrica plaga, * Cic. poët. Tusc. 2, 9, 22: vestis,dark, black, Tert. Pall. 4 fin.