ἀηττησία
From LSJ
τοῖς πράγμασιν γὰρ οὐχὶ θυμοῦσθαι χρεών· μέλει γὰρ αὐτοῖς οὐδέν· ἀλλ' οὑντυγχάνων τὰ πράγματ' ὀρθῶς ἂν τιθῇ, πράξει καλῶς → It does no good to rage at circumstance; events will take their course with no regard for us. But he who makes the best of those events he lights upon will not fare ill.
Greek (Liddell-Scott)
ἀηττησία: ἡ, τὸ ἀήττητον, Ἰούλ. Ἀφρικ. σ. 291.
Spanish (DGE)
-ας, ἡ invencibilidad Afric.Cest.1.3.16.