I.firmness, durability, strength (less freq. than firmitas, but class.).
I. Lit.: “tanta in eis (navibus) erat firmitudo,” Caes. B. G. 3, 13, 8; cf.: “tanta erat operis (i. e. pontis) firmitudo,” id. ib. 4, 17, 7: “vocis,” Auct. Her. 3, 11, 20. —
II. Trop., firmness, constancy, stability, strength of mind: “animi,” Plaut. As. 2, 2, 54; cf.: “quod firmitudinem gravitatemque animi tui perspexi,” Cic. Fam. 5, 13, 3: “quantum esset hominibus praesidii in animi firmitudine,” Caes. B. C. 3, 28, 4: “animi,” Tac. A. 4, 8: “in patientia firmitudinem simulans,” id. ib. 6, 46 fin.; cf. ib. 15, 62: “non quod salus ab isto data quicquam habitura sit firmitudinis,” Cic. Att. 11, 14, 2: “haec constitutio habet firmitudinem,” id. Rep. 1, 45: “(translationes) per se minus habeant firmitudinis,” id. Inv. 2, 19, 58.