throw off vs unentangle

throw off

verb
  • To give forth in an unpremeditated manner. 

  • To expel, reject, or renounce. 

  • Of a horse, to eject its rider. 

  • To introduce errors or inaccuracies; to skew. 

  • To confuse; especially, to lose a pursuer. 

unentangle

verb
  • To reverse the process of entanglement 

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