percussion vs tremble

percussion

noun
  • The repeated striking of an object to break or shape it, as in percussion drilling. 

  • The detonation of a percussion cap in a firearm. 

  • The tapping of the body as an aid to medical diagnosis. 

  • The sound so produced. 

  • The outer side of the hand. 

  • The collision of two bodies in order to produce a sound. 

  • The section of an orchestra or band containing percussion instruments; such instruments considered as a group; in bands, may be separate from drum kits. 

tremble

noun
  • A shake, quiver, or vibration. 

verb
  • To shake, quiver, or vibrate. 

  • To fear; to be afraid. 

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