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.
A confluence of four rivers supplies Lake Jocassee's water. The farthest west of the rivers, the Whitewater River, flows southeast until it meets the northwest corner of Lake Jocassee. The Thompson River flows due south until it too reaches the lake in the northwest corner.