deaden vs engender

deaden

verb
  • To become less lively; to diminish (by itself). 

  • To make soundproof. 

  • To render less lively; to diminish; to muffle. 

engender

verb
  • To assume form; to come into existence; to be caused or produced. 

  • To give existence to, to produce (living creatures). 

  • To bring into existence (a situation, quality, result etc.); to give rise to, cause, create. 

  • To endow with gender; to create gender or enhance the importance of gender. 

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