ἀμφικυκλόομαι
From LSJ
τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd
English (LSJ)
Pass.,
A encircle, surround, ἀμφὶ δὲ κυκλοῦντο νῆσον A.Pers.458.—Act. in Agath.3.6.
Greek (Liddell-Scott)
ἀμφικυκλόομαι: Μέσ. περικυκλῶ, ἀμφὶ δὲ κυκλοῦντο ... νῆσον (ἐν τμήσει) Αἰσχύλ. Πέρσ. 458. -Τὸ ἐνεργ. εὕρηται παρὰ Βυζ.