unchancy vs unlucky

unchancy

adj

  • Unfortunate, unlucky. 

  • Dangerous, unsafe. 

unlucky

adj

  • Unfortunate, marked by misfortune. 

  • Having ill luck. 

  • Inauspicious. 

  • Bringing ill luck. 

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