handwriting-on-the-wall vs threatening

handwriting-on-the-wall

threatening

adj

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

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

noun

  • An act of threatening; a threat. 

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