gesticulation vs incentive

gesticulation

noun
  • The act of gesticulating, or making gestures to aid expression of thoughts, sentiments or passion. 

  • A gesture; a motion of the body or limbs when speaking, or in representing action or passion, and enforcing arguments and sentiments. 

incentive

noun
  • Something that motivates, rouses, or encourages. 

  • A bonus or reward, often monetary, to work harder. 

adj
  • Inciting; encouraging or moving; rousing to action; stimulating. 

  • Serving to kindle or set on fire. 

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