treadle

/ˈtrɛdəl/
verb
  1. To operate a machine by pressing a treadle with the foot.
    • She treadled the spinning wheel gently to keep the thread even.
    • The tailor treadled the sewing machine while guiding the fabric.
    • In the workshop, workers treadled the looms to weave cloth.
noun
  1. A lever or pedal that is pressed by the foot to operate a machine, such as a sewing machine or a lathe.
    • She pressed the treadle with her foot to start the sewing machine.
    • He learned to control the speed of the lathe by adjusting the pressure on the treadle.
    • The old potter's wheel was powered by a wooden treadle.
Synonyms
What does "treadle" mean? | whatsthatwordmean | whatsthatwordmean