incorporate vs prepare

incorporate

verb
  • To mix (something in) as an ingredient; to blend 

  • To admit as a member of a company 

  • To form into a legal company. 

  • To include (another clause or guarantee of the US constitution) as a part (of the Fourteenth Amendment, such that the clause binds not only the federal government but also state governments). 

  • To include (something) as a part. 

  • To form into a body; to combine, as different ingredients, into one consistent mass. 

  • To unite with a material body; to give a material form to; to embody. 

adj
  • Not consisting of matter; not having a material body; incorporeal; spiritual. 

  • Not incorporated; not existing as a corporation. 

prepare

verb
  • To produce or make by combining elements; to synthesize, compound. 

  • To make ready for a specific future purpose; to set up; to assemble or equip. 

  • To make ready for eating or drinking; to cook. 

  • To make oneself ready; to get ready, make preparation. 

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