adherence vs treason

adherence

noun
  • An extent to which a patient continues an agreed treatment plan. 

  • The fulfilment of the legal obligation of residing with wife or husband. 

  • Faithful support for some cause. 

  • A close physical union of two objects. 

treason

noun
  • An act of treachery, betrayal of trust or confidence. 

  • The crime of betraying one’s own country. 

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