#4962 συστρέφω sustrepho {soos-tref'-o}

 from G4862 and G4762; TDNT - n/a; v

—Greek Word Study (Transliteration-Pronunciation Etymology & Grammar)

 1) to twist together, roll together
 2) to collect, combine, unite
    2a) of men, to (gather themselves together) assemble

—Thayer's (New Testament Greek-English Lexicon)

—Strong's (Greek Dictionary of the New Testament)

—NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries

 AV - gather 1; 1

—Exhaustive Concordance (KJV Translation Frequency & Location)