συναλίζω G4871
synalízō · soon-al-id'-zo · Verb
from σύν and (to throng); to accumulate, i.e. convene:--assemble together.
1 Occurrence in the King James Bible
Acts 1:4And, being assembled together with them, commanded them that they should not depart from Jerusalem, but wait for the promise of the Father, which, saith he, ye have heard of me.