diffidence vs reliance

diffidence

noun
  • The state of being diffident, timid or shy; reticence or self-effacement. 

reliance

noun
  • A person or thing which relies on another. 

  • The condition of being reliant or dependent. 

  • The act of relying (on or in someone or something); trust. 

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