claw vs piton

claw

verb
  • To use the claws to climb. 

  • To scratch or to tear at. 

  • To perform a claw catch. 

  • To use the claws to seize, to grip. 

  • To move with one's fingertips. 

noun
  • 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. 

  • A foot equipped with such. 

piton

verb
  • To put pitons into a rock/ice to facilitate climbing. 

noun
  • A spike, wedge, or peg that is driven into a rock or ice surface as a support (as for a mountain climber). 

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