awful vs parlous

awful

adj
  • Very bad. 

  • Exceedingly great; usually applied intensively. 

adv
  • Very, extremely. 

  • Awfully; dreadfully; terribly. 

parlous

adj
  • Appalling, dire, terrible. 

  • Attended with peril; dangerous, risky. 

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