leapfrog vs pounce

leapfrog

verb
  • To jump over some obstacle, as in the game of leapfrog. 

  • To overtake. 

  • To appeal or allow to be appealed (a case) directly to a supreme court, bypassing an intermediate appellate court. 

  • To advance by engaging the enemy with one unit while another moves further forward. 

  • To progress. 

noun
  • The process by which a case is appealed or allowed to be appealed directly to a supreme court, bypassing an intermediate appellate court. 

  • A game, often played by children, in which a player leaps like a frog over the back of another person who has stooped over. One variation of the game involves a number of people lining up in a row and bending over. The last person in the line then vaults forward over each of the others until he or she reaches the front of the line, whereupon he also bends over. The process is then repeated. 

pounce

verb
  • To leap into the air intending to seize someone or something. 

  • To eagerly seize an opportunity. 

  • To sprinkle or rub with pounce powder. 

  • To attack suddenly by leaping. 

  • To strike or seize with the talons; to pierce, as with the talons. 

  • To stamp holes in; to perforate. 

noun
  • Charcoal dust, or some other coloured powder for making patterns through perforated designs, used by embroiderers, lacemakers, etc. 

  • A sudden leaping attack. 

  • A type of fine powder, as of sandarac, or cuttlefish bone, sprinkled over wet ink to dry the ink after writing or on rough paper to smooth the writing surface. 

  • A punch or stamp. 

  • Cloth worked in eyelet holes. 

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