catalyze vs speed up

catalyze

verb
  • To accelerate a process. 

  • To inspire significantly by catalysis. 

  • To bring about the catalysis of a chemical reaction. 

speed up

verb
  • To accelerate; to increase speed. 

  • To increase the speed of something; to make something go faster. 

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