bygone vs eradicated

bygone

adj
  • Having been or happened in the distant past. 

noun
  • An event that happened in the past. 

eradicated

adj
  • Having the roots of a tree visible in the emblazon. 

  • eliminated, utterly destroyed 

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