τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd
θρονόομαι: ἐνθρονίζομαι, θρονούμενος κριτὴς Λέοντ. μαγ. ποιήμ. Matr. An. gr. hell. I. σ. 201.