τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd
-η, -ο, Νπολύ ψηλός, πανύψηλος.[ΕΤΥΜΟΛ. < επιτ. τετρ(α)- + ψηλός].