assertive vs commanding

assertive

adj
  • Boldly self-assured; confident without being aggressive. 

commanding

adj
  • Impressively dominant. 

  • Tending to give commands, authoritarian. 

  • Dominating from above, giving a wide view 

noun
  • The act of giving a command. 

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