Dictionary entry

συνδρομή

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament with Strong's

** συνδρομή, -ῆς, ἡ

(< συντρέχω), [in LXX: Jth 10:18, III Mac 3:8 *;]

a concourse, esp. of a riotous gathering: Ac 21:30 (Arist., Polyb., al.).†