τὴν οἴησιν ἔλεγε προκοπῆς ἐγκοπήν → he used to say, Opinion forming is the stoppage of progress
subs.
P. διάμετρος. ἡ.
dĭămĕter, trī, m., c. diametros : Boet. Anal. pr. 1, 23.