ὑπόγειος

English (LSJ)

also ὑπόγαιος, ον, (γῆ)

   A underground, subterraneous, οἴκημα ὑπόγαιον Hdt.2.100,148 (vv.ll. -γεον, -γεα) ὀρύγματα ὑπόγαια mines, Id.4.200 (v.l. -γεα) ; ὑπογαίου (v.l. -γείου) βροντῆς A. Fr.57.10 (anap.); ὑπόγειον ὕδωρ Gp.2.6.33; ὑ. οἶνος stored in a cellar, Gal.19.95.    II ὑπόγειον or -γαιον, τό, an underground chamber, Plu.2.770e, Hdn.1.15.6.    III Astron., under the earth, Man.3.27, Gp.1.7.1; [ἄστρα] τὴν ὑ. φορὰν ἐνεχθέντα Placit.1.6.8: τὸ ὑ. the nadir, Vett.Val.75.24.—The form ὑπόγεως, ων, cited in Hdn.Epim.208 and Suid., occurs in codd. of Paus.2.2.1, 2.36.7; cf. ὑπογάιδιον.