generate vs sire

generate

verb
  • To bring into being; give rise to. 

  • To produce as a result of a chemical or physical process. 

  • To procreate, beget. 

  • To form a figure from a curve or solid. 

  • To appear or occur; be generated. 

sire

verb
  • to father; to beget. 

noun
  • A male animal that has fathered a particular offspring (especially used of domestic animals and/or in biological research). 

  • A lord, master, or other person in authority, most commonly used vocatively: formerly in speaking to elders and superiors, later only when addressing a sovereign. 

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