engender vs frustrate

engender

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

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

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

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

frustrate

verb
  • To disappoint or defeat; to vex by depriving of something expected or desired. 

  • To cause stress or annoyance. 

  • To hinder or thwart. 

adj
  • ineffectual; useless; fruitless. 

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