delegate vs undertake

delegate

verb
  • to commit a task to someone, especially a subordinate 

  • (of a subdomain) to give away authority over a subdomain; to allow someone else to create sub-subdomains of a subdomain of one's own 

  • to authorize someone to be a delegate 

noun
  • A representative at a conference, etc. 

  • A type of variable storing a reference to a method with a particular signature, analogous to a function pointer. 

  • An appointed representative in some legislative bodies. 

  • A person authorized to act as representative for another; a deputy. 

undertake

verb
  • 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. 

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

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

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