congregate
v.
mid-15c., from Latin congregatus "flocking together," past participle of congregare "to herd together, collect in a flock, swarm; assemble," from com- "together" (see com-) + gregare "to collect into a flock, gather," from grex (genitive gregis) "a flock" (see gregarious). Related: Congregated; congregating.
〔李〕[con-;greg;-atev.] v.集合； 聚集 ←greg (L grex,gregis)=flock, herd 群
〔蒋〕[con-共同，greg集合，-ate动词兼形容词后缀] (使)集合;集合在一起的，集体的