learn vs obliviate

learn

noun
  • The act of learning something 

verb
  • To acquire, or attempt to acquire knowledge or an ability to do something. 

  • To attend a course or other educational activity. 

  • To teach. 

  • To come to know; to become informed of; to find out. 

  • To gain knowledge from a bad experience so as to improve. 

  • To study. 

obliviate

verb
  • To forget; to wipe from existence. 

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