memory-hole vs pass over

memory-hole

verb
  • To cause something or someone to be forgotten. 

pass over

verb
  • To bypass or disregard in favour of someone or something else. 

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

  • To make a transit of; to pass through or across (something). 

  • To bypass (something); to skip (something). 

  • To overlook; not to note or resent. 

  • To die and thus progress to the afterlife. 

How often have the words memory-hole and pass over occurred in a corpus of books? (source: Google Ngram Viewer )