encroachment vs obedience

encroachment

noun
  • That which is gained by such unlawful intrusion. 

  • An intrusion upon another's possessions or rights; infringement. 

  • An unlawful diminution of the possessions of another. 

  • An entry into a place or area that was previously uncommon; an advance beyond former borders; intrusion; incursion. 

obedience

noun
  • The collective body of persons subject to any particular authority. 

  • A written instruction from the superior of an order to those under him. 

  • Any official position under an abbot's jurisdiction. 

  • The quality of being obedient. 

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