compulsory purchase vs ouster

compulsory purchase

noun
  • The power of a state to expropriate private land within its jurisdiction for public use. 

ouster

noun
  • Action by a cotenant that prevents another cotenant from enjoying the use of jointly owned property. 

  • Someone who ousts. 

  • A putting out of possession; dispossession; ejection. 

  • Specifically, the forceful removal of a politician or regime from power; coup. 

verb
  • To oust. 

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