assign vs ration

assign

verb
  • 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. 

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

noun
  • An assignee. 

ration

verb
  • To supply with a ration; to limit (someone) to a specific allowance of something. 

  • To restrict (an activity etc.) 

  • To portion out (especially during a shortage of supply); to limit access to. 

noun
  • A portion of some limited resource allocated to a person or group. 

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