στερέωμα, -τος, τό
(στερεόω), [in LXX: Gen.1:6 ff., Psa.19:1 150:1, Eze.1:22-26 10:1 13:5, Dan LXX, TH Dan.3:56, Dan.12:3 (רָקִיעַ), Deu.33:26 (שַׁחַק), Psa.18:2 71:3 (סֶלַע), Est.9:29, I Est.8:78 (82), Sir.43:1, 8, 1Ma.9:14 * ;]
a solid body;
__(a) a support, foundation (Arist., al.); metaphorically, strength (Psa.17:1-15 70:1-5, 1Mac, ll. with); steadfastness, firmness: τ. πίστεως, Col.2:5;
__(b) the dome of heaven (believed to be a solid canopy), the firmament (LXX).†
(AS)