take leave vs walk back

take leave

verb
  • Used other than figuratively or idiomatically: see take, leave. 

  • To depart. 

walk back

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

  • To withdraw or backpedal on a statement or promise. 

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