εὐκαμψία
From LSJ
Ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι → I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either
English (LSJ)
ἡ,
A flexibility, of the voice, Arist.GA786b10.
German (Pape)
[Seite 1073] ἡ, Biegsamkeit, Ggstz ἀκαμψία, Arist. gen. anim. 5, 7.