αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
rūsum: v. rursus.
rusum et russum, v. rursus.
rūsum, Adv., archaistisch = rursum, w. s.