expedite vs incentive

expedite

adj
  • Expeditious; quick; prompt. 

  • Free of impediment; unimpeded. 

verb
  • To perform (a task) fast and efficiently. 

  • To accelerate the progress of. 

  • To perform the duties of an expediter. 

incentive

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

  • Serving to kindle or set on fire. 

noun
  • Something that motivates, rouses, or encourages. 

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

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