hypaethrus or -os, a, um, adj., = ὕπαιθρος, that is in the open air, uncovered.
I Adj. : ambulationes, Vitr. 5, 9 med. : loca (with aperta), id. ib.—
II Subst.
A hy-paethros , i, m., a temple open or without roof , Vitr. 3, 2, 1.—
B hypaethrum , i, n., an open building , Dig. 33, 7, 12, § 20; id. 50, 16, 242, § 2.—
C hypaethra , ōrum, n., uncovered , open walks , Vitr. 1, 2.