demonstrative vs evidential

demonstrative

adj
  • that serves to demonstrate, show or prove 

  • given to open displays of emotion 

  • that specifies the thing or person referred to 

noun
  • A demonstrative pronoun. 

  • A demonstrative adjective. 

evidential

adj
  • Of or providing evidence. 

noun
  • A syntactic element (affix, clitic, or particle) that indicates evidentiality. 

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