The committee members convened for their weekly meeting every Wednesday morning.

convened 是动词 convene 的过去式形式。convene 由前缀 con-（表示"一起"）和词根 vene（来自拉丁语 venire，意思是"来"）组成，字面意思是"大家一起来"，引申为"召集、聚集、召开会议"。