purge vs redact

purge

verb
  • To forcibly remove, e.g., from political activity. 

  • To free from sin, guilt, or the burden or responsibility of misdeeds. 

  • To void or evacuate (the bowels or the stomach); to defecate or vomit. 

  • To forcibly remove people from. 

  • To have or produce frequent evacuations from the intestines, as by means of a cathartic. 

  • To trim, dress, or prune. 

  • To remove by cleansing; to wash away. 

  • To clarify; to clear the dregs from (liquor). 

  • To cause someone to purge, operate on (somebody) as or with a cathartic or emetic, or in a similar manner. 

  • To clean thoroughly; to cleanse; to rid of impurities. 

  • To become pure, as by clarification. 

  • To clear of a charge, suspicion, or imputation. 

noun
  • An evacuation of the bowels or a vomiting. 

  • That which purges; especially, a medicine that evacuates the intestines; a cathartic. 

  • A cleansing of pipes. 

  • An act of purging. 

  • A forcible removal of people, for example, from political activity. 

redact

verb
  • To censor, to black out or remove parts of a document while leaving the remainder. 

  • To black out legally protected sections of text in a document provided to opposing counsel, typically as part of the discovery process. 

  • To draw up or frame a decree, statement, etc. 

  • To reduce to form, as literary matter; to digest and put in shape (matter for publication); to edit. 

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