ἀντίβασις
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)
εως, ἡ,
A resistance, Ph.Bel.73.14, Plu.Caes.38, etc.; πρός τι Id.2.584f; ἡ κατ' ἀντίβασιν ἁφή S.E.M.10.2; opp. ἐπέρεισις, Sor.2.10,cf. Antyll. ap. Orib.9.23.11. 2 ground of opposition(?), διαφόρου τετευχότα -σεως Phld.Sign.27. II in the ballista, counter-prop, Vitr.10.11.9.