ἀποστέγω

A. shelter or protect, αἱ ὀφρύες ἀ., οἷον ἀπογείσωμα, τῶν ὑγρῶν Arist. PA 658b16: c. acc. only, protect, Id. Pr. 924b1; ἀ. καὶ τηρεῖ τὴν ζωήν [ὁ φλοιός] Thphr. CP 1.4.5.

II. keep out or off, τὸ ὕδωρ, Arist. Pr. 924a26, cf. Emp. 84.10, Pl. Lg. 844b; τὸ ψῦχος Arist. Pr. 939b17; τὴν ἁλμυρίδα Thphr. CP 3.6.3, al.; θερμότητα καὶ ὑγρότητα ib.4.12.2, cf. 5.12.9, Plu. 2.665f: metaph., ὄχλον πύργος ἀποστέγει A. Th. 234 (lyr.); ἀ. πληγὰς λίθων Plb. 6.23.5.