claw vs treadle

claw

noun
  • A foot equipped with such. 

  • The pincer (chela) of a crustacean or other arthropod. 

  • A curved, pointed horny nail on each digit of the foot of a mammal, reptile, or bird. 

  • A mechanical device resembling a claw, used for gripping or lifting. 

  • A slender appendage or process, formed like a claw, such as the base of petals of the pink. 

  • The act of catching a ball overhand. 

  • A human fingernail, particularly one extending well beyond the fingertip. 

verb
  • To scratch or to tear at. 

  • To use the claws to climb. 

  • To perform a claw catch. 

  • To use the claws to seize, to grip. 

  • To move with one's fingertips. 

treadle

noun
  • A foot-operated pedal or lever that generates motion. 

  • A device actuated by wheels passing over it. 

  • Chalaza. 

verb
  • To use a treadle. 

How often have the words claw and treadle occurred in a corpus of books? (source: Google Ngram Viewer )