Brown Driver Briggs

 1. stroke, beat, foot, step, anvil, occurrence
  1) foot, hoof-beat, footfall, footstep
  2) anvil
  3) occurrence, time, stroke, beat
1c1. one time, once, twice, thrice, as time on time, at this
repetition, this once, now at length, now...now, at one
time...at another