συν-αθροίζω
[in LXX chiefly for קָבַץ ;]
to gather together, assemble: with accusative of person(s), Act.19:25; pass., Act.12:12.†
ἀθροίζω
(ἀθρόος, assembled in crowds, MM, VGT, see word; θρόος, a noise, tumult), [in LXX chiefly for קָבַץ ;]
to Gather, assemble: Luk.24:33.†
(AS)