A.“ἔδοξεν Ἀθηναίων τοῖς τεταγμένοις ἐν Ἐλευσῖνι . . καὶ τοῖς ὑπαίθροις” IG22.1304.3 (iii B.C.); “παραχειμασία” Plb.3.87.2; “δυνάμεις” Id.1.82.14, cf. PCair.Zen.545.5 (iii B.C.), PMich.Zen.90.3 (iii B.C.), PTeb.722.11 (ii B.C.); “τὰ κτήνη μου ὕ. ἐστιν” PEnteux.11.2 (iii B.C.); “ἀγῶνες” Phld.Rh.2.108S.; “πόλεμοι” D.H.6.22; “ὕπαιθρον ὕλην λεῖπε” Babr.12.14.
II. as Subst., ὕπαιθρον, τό, open enclosure, IG22.1035.47, Luc.Symp.20; ἐν ὑπαίθρῳ in the open air, Antipho 5.11, X.Mem.2.1.6, Oec.7.19: metaph., εἰς ὕπαιθρον into the public view, into the daylight, πρῶτον εἰς ὕ. ἐξεληλυθώς, of a youth, Pib.10.3.4; “εἰς ὕ. ἕλκειν τινά” Plu.2.501d; “τὴν αὑτῶν ἀμαθίαν εἰς ὕ. ἄγουσι” Erot.Prooem.
2. in military language, from Plb. downwds., τὰ ὕ. the field, the open country, opp. fortified places, “τῶν ὑ. ἀντιποιεῖσθαι” 1.12.4, 1.30.6; “μάχεσθαι ἐν τοῖς ὑ.” 18.3.4; ἐκχωρεῖν τῶν ὑ. retire from the open country, and shut themselves up in the towns, 9.3.6; “ἡ ἐν ὑπαίθροις οἰκονομία” 6.12.5.
4. open to the sky, Lat. hypaethros, aedificia, ambulationes, Vitr.1.2.5, 5.9.5; hypaethros (sc. ϝαός), a temple with an open skylight, Id.3.2.1. This form is not used by Att. writers except in the phrase ἐν ὑπαίθρῳ; the form employed by them in Adj. sense is always ὑπαίθριος; v. X.Oec.7.20, where αἱ ἐν τῷ ὑπαίθρῳ ἐργασίαι are synon. with ὑπαίθρια ἔργα.
