αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
γυιῶ (-όω) (Α)
1. καθιστώ κάποιον ανάπηρο
2. εξασθενώ, βλάπτω.
[ΕΤΥΜΟΛ. < γυῖον ή, κατ' άλλους, < (σύνθ.) απογυιώ («εξασθενώ, αδυνατίζω»)].