assign vs deputize

assign

verb
  • To appoint or select (someone) for some office. 

  • To give (a value) to a variable. 

  • To allot or give (something) as a task. 

  • To designate or set apart (something) for some purpose. 

  • To attribute or sort (something) into categories. 

  • To categorize (someone) as belonging to the male or female sex. 

  • To transfer (property, a legal right, etc.) from one person to another. 

noun
  • An assignee. 

deputize

verb
  • to officially empower and authorize (someone) to act as a substitute in one's role or office 

  • To act as a substitute for a person in their role or office 

  • To officially empower, authorize, pronounce, and establish (someone) to be a deputy. 

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