αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
impér. ao.2 de ἀποδίδωμι.
ἀπόδος: imper. aor. 2 к ἀποδίδωμι.
