Sentence:  The band played ceaselessly. Even when the other instruments were resting the pianist kept up his monotonous vamping, with a dreary furbelow for embellishment here and there, to which some few of the dancers continued to <WSD>shuffle</WSD> round the floor. 
Meaning of the word marked with <WSD> tags:  To move in a slovenly, dragging manner; to drag or scrape the feet in walking or dancing.