ditch vs subduct

ditch

verb
  • To discard or abandon. 

  • To dig ditches around. 

  • To dig ditches. 

  • To throw into a ditch. 

  • To deliberately not attend classes; to play hookey. 

  • To deliberately crash-land an airplane on water. 

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

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

subduct

verb
  • To remove; to deduct; to take away; to disregard. 

  • To push under or below. 

  • To move downwards underneath something. 

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