auspicious vs haunting

auspicious

adj
  • Conducive to success. 

  • Marked by success; prosperous. 

  • Of good omen; indicating future success. 

haunting

adj
  • Remaining in the mind; not easily forgotten. 

noun
  • A particular instance of haunting; a ghostly habitation. 

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