scree vs tor

scree

noun
  • A slope made up of loose stony debris at the base of a cliff, mountain, etc. 

  • Similar debris made up of broken building material such as bricks, concrete, etc. 

  • Loose stony debris on a slope. 

  • A coarse sieve. 

  • A harsh, high-pitched sound or cry (as of a hawk). 

verb
  • To flatten or level concrete while still wet, and remove protruding gravel and stones from the surface. 

  • To traverse scree downhill. 

  • To make a high-pitched cry like that of a hawk. 

tor

noun
  • A craggy outcrop of rock on the summit of a hill, created by the erosion and weathering of rock. 

  • A hill with such rock formation. 

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