G4731
στερεός
strong
στερεός, -ά, -όν [in LXX: Num.8:4 (מִקְשָׁה); σ. πέτρα, Isa.5:28 (צַר), etc. ;] hard, firm, solid: τροψή, Heb.5:12, 14; θεμέλιος, figuratively, 2Ti.2:19. Metaphorical, __(a) in bad sense, hard, cruel (Hom., al.); __(b) in good sense, steadfast, firm: τ. πίστει, 1Pe.5:9.† (AS)
The KJV translates G4731 in the following manner:
strong (4x), stedfast (2x), sure (2x)
Full Thayer's lexicon entry
στερεός — stereós
στερεός, στερεά, στερεόν (Vanicek, p. 1131; Curtius, § 222), from Homer down, firm, solid, compact, hard, rigid: λίθος, Homer Odyssey 19, 494; strong, firm, immovable, θεμέλιος, 2Ti 2:19; τροφή, solid food, Heb 5:12; Heb 5:14; στερεωτερα τροφή, Diodorus 2, 4; Epictetus diss. 2, 16, 39; tropically, in a bad sense, cruel, stiff, stubborn, hard; often so in Greek writings from Homer down: κραδιη στερεωτερη λιθοιο, Odyssey 23, 103; in a good sense, firm, steadfast: τῇ πίστει, as respects faith, firm of faith (cf. Winer's Grammar, § 31, 6 a.), 1Pe 5:9 (see στερεόω, at the end).
4 occurrences
II Timothy (1), Hebrews (2), I Peter (1)