Abbott-Smith Manual Greek Lexicon
στηριγμός (G4740)
1 ** στηριγμός , -οῦ, ὁ ( στηρίζω ), [in Sm.: Is 3:1 * ;] a setting firmly, supporting . fixedness, firmness, steadfastness : II Pe 3:17 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain