bygone vs never

bygone

noun
  • An event that happened in the past. 

adj
  • Having been or happened in the distant past. 

never

intj
  • A statement of defiance 

adv
  • Negative particle (used to negate verbs in the simple past tense; also used absolutely). 

  • At no time; on no occasion; in no circumstance. 

  • Not at any other time; not on any other occasion; not previously. 

How often have the words bygone and never occurred in a corpus of books? (source: Google Ngram Viewer )