cautionary vs upcoming

cautionary

adj
  • Serving to caution or warn; admonitory 

  • Serving to ward off; preventive 

upcoming

adj
  • Pertaining to to upcome 

  • Happening or appearing in the relatively near future. 

  • Eggcorn of up-and-coming. 

noun
  • comeuppance; deserts 

  • The act of coming up. 

  • The activity of to upcome 

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