τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd
lysis: is, f., = λύσις.
I A loosening, rupture: trabes frangunt suā lysi structuras, Vitr. 6, 11.—
II A talon, ogee, Vitr. 3, 4, 5; 5, 6, 6.