displace vs oblige

displace

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

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

  • To put out of place; to disarrange. 

  • 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. 

oblige

verb
  • To do (someone) a service or favour (hence, originally, creating an obligation). 

  • To be indebted to someone. 

  • To constrain someone by force or by social, moral or legal means. 

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