I.a standing fast or firm, steadfastness, firmness, durability, immovability, stability (class.).
I. Lit.: ita mobilitatem equitum, stabilitatem peditum in proeliis praestant, * Caes. B. G. 4, 33: “stirpes stabilitatem dant iis, quae sustinent,” Cic. N. D. 2, 47, 120: “dentium,” Plin. 23, 3, 37, § 74.—
II. Trop.: “qui poterit aut corporis firmitate aut fortunae stabilitate confidere?” Cic. Tusc. 5, 14, 40: “benevolentiam non stabilitate et constantiā judicare,” id. Off. 1, 15, 47; so (with constantia) id. Lael. 18, 65: “stabilitas amicitiae confirmari potest, cum, etc.,” id. ib. 22, 82; cf. id. Fin. 1, 20, 66: “hae sunt sententiae, quae stabilitatis aliquid habeant,” id. Tusc. 5, 30, 85.