martial vs threatening

martial

adj
  • Of, relating to, or suggestive of war; warlike. 

  • Connected with or relating to armed forces or the profession of arms or military life. 

  • Characteristic of or befitting a warrior; having a military bearing; soldierly. 

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 martial and threatening occurred in a corpus of books? (source: Google Ngram Viewer )