(v.) To throb, as a pulse; to beat, as the heart.

alternate be here again beat beat a ruffle beat a tattoo circle come again come and go come around come round come round again come up again cycle drum fluctuate flutter go pitapat hammer intermit oscillate palpitate pant patter pitter-patter pound pulse pump quiver reappear recur reoccur repeat return reverberate revolve roar roll roll around rotate ruffle sound a tattoo splatter splutter sputter throb thrum thud thump tick ticktock turn undulate vibrate wheel wheel around