borderline vs fringing

borderline

noun
  • A boundary or accepted division; a border. 

  • An individual who has borderline personality disorder. 

verb
  • To border, or border on; to be physically close or conceptually akin to. 

adv
  • Nearly; not entirely but nevertheless to a great extent. 

adj
  • Showing bad taste. 

  • Nearly; not clearly on one side or the other of a border or boundary, ambiguous. 

  • Exhibiting borderline personality disorder. 

fringing

noun
  • A fringe or border. 

  • Any anomalous electric or magnetic effect at the edges of a region. 

  • The appearance of false colours in an image as the result of poor registration of component monochrome images. 

adj
  • That fringes. 

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