cogent vs evidential

cogent

adj
  • Reasonable and convincing; based on evidence. 

  • Appealing to the intellect or powers of reasoning. 

  • Forcefully persuasive; relevant, pertinent. 

evidential

adj
  • Of or providing evidence. 

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

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