Abbott-Smith Manual Greek Lexicon
στερέωμα (G4733)
1 στερέωμα , -τος, τό ( στερεόω ), [in LXX: Ge 1:6 ff., Ps 18 (19):1 150:1 , Ez 1:22-26 10:1 13:5 , Da LXX, TH 3:(56), 12:3 ( רָקִיעַ ), De 33:26 ( שׁחק ), Ps 17 (18):2 70 (71):3 ( סֶלַע ), Es 9:29, I Es 8:78 (82) , Si 43:1 , 8 , I Mac 9:14 * ;] a solid body ; a support, foundation (Arist., al.); metaph., strength ( Ps 17 70 , I Mac, ll. c. ); steadfastness, firmness : τ. πίστεως , Col 2:5 ; the dome of heaven (believed to be a solid canopy), the firmament (LXX).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain