τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd
ἀνθρωποϋπόστατος: -ον, ὁ ἔχων ἀνθρωπίνην ὑπόστασιν, Ἀθαν. τ. 2, σ. 396Β, ἔκδ. Βενεδ.