conceive vs sire

conceive

verb
  • To understand (someone). 

  • To generate or engender; to bring into being. 

  • To develop an idea; to form in the mind; to plan; to devise; to originate. 

  • To become pregnant (with). 

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 conceive and sire occurred in a corpus of books? (source: Google Ngram Viewer )