move back vs reenter

move back

verb
  • Used other than figuratively or idiomatically: see move, back. 

  • To reschedule (something) to a later date or time. 

reenter

verb
  • To enter again; return into. 

  • To enter again; retype, reinput. 

  • To cut deeper where the aqua fortis has not bitten sufficiently. 

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