ditch vs talus

ditch

noun
  • A raised bank of earth and the hedgerow on top. 

  • A trench; a long, shallow indentation, as for irrigation or drainage. 

verb
  • To dig ditches around. 

  • To dig ditches. 

  • To throw into a ditch. 

  • To discard or abandon. 

  • To deliberately not attend classes; to play hookey. 

  • To deliberately crash-land an airplane on water. 

talus

noun
  • The slope of an embankment wall, which is thicker at the bottom than at the top. 

  • The bone of the ankle. 

  • A sloping heap of fragments of rock lying at the foot of a precipice. 

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