get rid of vs topple

get rid of

verb
  • to rid oneself of; dispose (of); to remove; to abolish; to lose 

topple

verb
  • To overthrow something. 

  • To overturn 

  • To totter and fall, or to lean as if about to do so. 

  • To push or throw over 

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