Abbott-Smith Manual Greek Lexicon
συνδρομή (G4890)
1 ** 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.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain