evidence vs obscurity

evidence

noun
  • A body of objectively verifiable facts that are positively indicative of, and/or exclusively concordant with, that one conclusion over any other. 

  • Facts or observations presented in support of an assertion. 

  • Anything admitted by a court to prove or disprove alleged matters of fact in a trial. 

  • One who bears witness. 

verb
  • To provide evidence for, or suggest the truth of. 

obscurity

noun
  • The state of being unknown; a thing that is unknown. 

  • The quality of being difficult to understand; a thing that is difficult to understand. 

  • Darkness; the absence of light. 

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