Sentence:  There was the small <WSD>byfall</WSD> to which I have referred; there was the weir proper; there was a broadish lasher, the whole between them making a very fair description of tumbling bay, flanked by strong, individual streams. 
Meaning of the word marked with <WSD> tags:  A fall of water, usually lesser in size, near to or beside a larger, more predominant waterfall.