originate vs unexist

originate

verb
  • To cause (someone or something) to be; to bring (someone or something) into existence; to produce or initiate a person or thing. 

  • To come into existence; to have origin or beginning; to spring, be derived (from, with). 

unexist

verb
  • To cause (someone or something) to not exist. 

  • To not exist, or to cease to exist. 

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