reliance vs supposition

reliance

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

  • A person or thing which relies on another. 

  • The condition of being reliant or dependent. 

supposition

noun
  • The act or an instance of supposing. 

  • Something that is supposed; an assumption made to account for known facts, conjecture. 

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