Last name meaning Ferris: This is an Anglicization of the Old Gaelic name O' Fearghusa - a compound of the Gaelic O (meaning grandson or male descendant) and the personal name Fergus, composed of the elements fear - a man and gus - vigour or force...
At other times, a confluence can be the location where two smaller streams or rivers merge to become the source for a new river. This is the case in Pittsburgh, Pennsylvania, where the Monongahela River and Allegheny River merge to create the Ohio River.
Definition of confluence. 1  1 : a coming or flowing together, meeting, or gathering at one point a happy confluence of weather and scenery a confluence of cultures. 2a : the flowing together of two or more streamsb : the place of meeting of two streams the Mississippi River's confluence with the Missouri Riverc : the combined stream formed by conjunction.