monitory vs threatening

monitory

adj
  • giving admonition and warning 

noun
  • a written letter giving admonition 

threatening

adj
  • Making threats, making statements about a willingness to cause harm. 

  • Presenting a threat, posing a likely risk of harm. 

noun
  • An act of threatening; a threat. 

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