droop vs faint

droop

verb
  • To lose all energy, enthusiasm or happiness; to flag. 

  • To slowly become limp; to bend gradually. 

  • To proceed downward, or toward a close; to decline. 

  • To allow to droop or sink. 

  • To hang downward; to sag. 

noun
  • A condition or posture of drooping. 

  • A hinged portion of the leading edge of an aeroplane's wing, which swivels downward to increase lift during takeoff and landing. 

  • Something which is limp or sagging. 

faint

verb
  • To lose courage or spirit; to become depressed or despondent. 

  • To decay; to disappear; to vanish. 

  • To lose consciousness through a lack of oxygen or nutrients to the brain, usually as a result of suddenly reduced blood flow (may be caused by emotional trauma, loss of blood or various medical conditions). 

noun
  • The act of fainting, syncope. 

  • The state of one who has fainted; a swoon. 

adj
  • Lacking strength; weak; languid; inclined to lose consciousness 

  • Performed, done, or acted, weakly; not exhibiting vigor, strength, or energy 

  • Slight; minimal. 

  • Barely perceptible; not bright, or loud, or sharp 

  • Lacking courage, spirit, or energy; cowardly; dejected 

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