enchant vs threaten

enchant

verb
  • To cast a spell upon (often one that attracts or charms). 

  • To attract and delight, to charm. 

  • To magically enhance or degrade an item. 

noun
  • An enchantment 

threaten

verb
  • To make a threat against someone; to use threats. 

  • To portend, or give a warning of. 

  • To call into question the validity of (a belief, idea, or viewpoint); to challenge. 

  • He threatened me with a knife. 

  • To menace, or be dangerous. 

  • To be close to equaling or surpassing (a record, etc.) 

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