valor vs weakness

valor

noun
  • Value; worth. 

  • Strength of mind in regard to danger; that quality which enables a person to encounter danger with firmness 

weakness

noun
  • An inadequate quality; fault 

  • The condition of being weak. 

  • A special fondness or desire. 

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