set forward vs undertake

set forward

verb
  • To set off, set forth; to start. 

  • To help or assist (a person, project etc.); to promote. 

  • To propose, suggest (an opinion, theory etc.). 

  • To put or carry (something) forward. 

undertake

verb
  • To take upon oneself; to start, to embark on (a specific task etc.). 

  • To commit oneself (to an obligation, activity etc.). 

  • To pass a slower moving vehicle on the curbside rather than on the side closest to oncoming traffic. 

noun
  • The passing of slower traffic on the curbside rather than on the side closest to oncoming traffic. 

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