entrap vs untangle

entrap

verb
  • To lure (someone), either into a dangerous situation, or into performing an illegal act. 

  • To catch in a trap or snare. 

untangle

verb
  • To remove confusion or mystery from. 

  • To remove tangles or knots from. 

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