αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
chatter: P. and V. θρυλεῖν, λαλεῖν, ἐκλαλεῖν (Euripides, Fragment).
verb transitive, disclose: P. and V. μηνύειν, P. ἐκλαλεῖν.