αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
stiffness of the muscles: Ar. and P. τέτανος, ὁ; see numbness.
obstinacy: P. σκληρότης, ἡ, αὐθάδεια, ἡ, Ar. and V. αὐθαδία.
ceremoniousness: P. and V. τὸ σεμνόν.