defend vs vouchsafe

defend

verb
  • To support by words or writing; to vindicate, talk in favour of. 

  • To focus one's energies and talents on preventing opponents from scoring, as opposed to focusing on scoring. 

  • To attempt to retain a title, or attempt to reach the same stage in a competition as one did in the previous edition of that competition. 

  • To call a raise from the big blind. 

  • To ward off attacks against; to fight to protect; to guard. 

  • To make legal defence of; to represent (the accused). 

vouchsafe

verb
  • To receive or accept in condescension. 

  • To graciously give, to condescendingly grant a right, benefit, outcome, etc.; to deign to acknowledge. 

  • To disclose or divulge. 

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