extraneous vs unappropriate

extraneous

adj
  • Not essential or intrinsic 

  • Not belonging to, or dependent upon, a thing; without or beyond a thing; foreign 

unappropriate

adj
  • Inappropriate; unsuitable. 

verb
  • To take from private possession; to restore to the possession or right of all. 

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