tĕnē^brĭcōsus — Lewis & Short
tĕnē^brĭcōsus, a, um, adj.tenebricus,
I full of darkness or gloom, shrouded in darkness, dark, gloomy (rare but class.):
esse sensus non obscuros sed tenebricosos,Cic. Ac. 2, 23, 73:
popina,id. Pis. 8, 18:
libidines,id. Prov. Cons. 4, 8:
tenebricosissimum tempus,id. Vatin. 5, 11:
iter,Cat. 3, 11:
locus angustus et tenebricosus,Varr. R. R. 3, 9, 19.