unchancy vs untimely

unchancy

adj

  • Unfortunate, unlucky. 

  • Dangerous, unsafe. 

untimely

adj

  • At an inopportune time. 

  • Early; premature. 

adv

  • Prematurely. 

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