Sentence:  Yet was not this all; for hither to the north boiled the majestic cataract in unimaginable grandiloquence, and thither to the south sparkled the gentle <WSD>catadupe</WSD> in serene and incandescent tranquillity, whilst far and near the halcyon brooklet flowed between! 
Meaning of the word marked with <WSD> tags:  Waterfall; cataract.