supplant vs take over

supplant

verb
  • To take the place of; to replace, to supersede. 

take over

verb
  • To adopt a further responsibility or duty. 

  • To become more successful (than someone or something else). 

  • To assume control of something, especially by force; to usurp. 

  • To appropriate something without permission. 

  • To buy out the ownership of a business. 

  • To relieve someone temporarily. 

  • To annex a territory by conquest or invasion. 

  • Used other than figuratively or idiomatically: see take, over. 

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