displace vs unseat

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. 

unseat

verb
  • To cause something to be removed or replaced in its role; to displace, overturn. 

  • To upset the composure of (in various ways); to astound, shock, or unsettle. 

  • To remove from some (especially political) position or office; to dethrone. 

  • To come out or off of a seat. 

  • To remove or dislodge from a seat (especially referring to horse riding). 

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