Strong's G656 — ἀποσυνάγωγος (adjective)
aposunagogos (ap-os-oon-ag'-o-gos) adj.
1. (properly) cut off from the gathering
2. (religiously) excommunicated
[from G575 and G4864]
KJV: (put) out of the synagogue(-s) 
Root(s): G575, G4864 
Hebrew root: συναγωγή
Occurrences: 3