displace vs supersede

displace

verb
  • To put out of place; to disarrange. 

  • To move something, or someone, especially to forcibly move people from their homeland. 

  • To repress. 

  • To have a weight equal to that of the water displaced. 

  • To replace, on account of being superior to or more suitable than that which is being replaced. 

  • To supplant, or take the place of something or someone; to substitute. 

supersede

verb
  • To displace in favour of itself. 

  • To take the place of. 

noun
  • An updated newsgroup post that supersedes an earlier version. 

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