αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
ων (αἱ) :« les Clefs », promont. de Chypre.Étymologie: κληΐς.
Κληῗδες: αἱ атт. = Κλεῖδες.