depress vs extrude

depress

verb
  • To press down. 

  • To cause a depression or a decrease in parts of the economy. 

  • To make depressed, sad or bored. 

  • To bring down or humble; to abase (pride, etc.). 

  • To reduce (an equation) in a lower degree. 

extrude

verb
  • To push or thrust out. 

  • To expel; to drive off. 

  • To form or shape (a metal, plastic etc.) by forcing it through a die or an opening. 

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