διὰ πέτρας καὶ διὰ δρυὸς ὁρᾶν → see through a brick wall, see through rocks and an oak
infernas: ātis, adj. infernus,I of or from the lower country, lowland (rare): abies, Plin. 16, 39, 76, § 197; Vitr. 2, 10: navicularii, Inscr. Orell. 1084: terra, Mart. Cap. 6, § 603.
