brittleness vs dejection

brittleness

noun
  • The state of being brittle; aptness to break; fragility. 

  • The property by virtue of which a material is fractured without appreciable deformation by the application of load. 

dejection

noun
  • A low condition; weakness; inability. 

  • The act of humbling or abasing oneself. 

  • A state of melancholy or depression; low spirits, the blues. 

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