passable vs sufficing

passable

adj
  • able to "pass", or be accepted as a member of a race, sex or other group to which society would not otherwise regard one as belonging. 

  • That may be passed or traversed. 

  • Tolerable; adequate; no more than satisfactory. 

sufficing

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