στερεόω

A. make firm or solid, τοὺς πόδας X. Eq. 4.3, cf. 5; τὴν γῆν ἐπὶ τῶν ὑδάτων LXX Ps. 135(136).6; τὸν οὐρανόν ib.Is. 45.12:—Pass., Hp. Vict. 1.9, Arist. GA 735b2.
2. strengthen, τοῦτον Act.Ap. 3.16; confirm, κρίσιν LXX Si. 3.2:—Pass., to be made strong, X. Cyr. 8.8.8, Act.Ap. 3.7: metaph., to be firmly established, confirmed, LXX 1 Ki. 2.1, al., D.S. 15.57.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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