conceive vs ruminate

conceive

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

  • To understand (someone). 

  • To generate or engender; to bring into being. 

  • To become pregnant (with). 

ruminate

verb
  • To meditate or ponder over; to muse on. 

  • To meditate or reflect. 

  • To chew cud. (Said of ruminants.) Involves regurgitating partially digested food from the rumen. 

adj
  • Having a hard albumen penetrated by irregular channels filled with softer matter, as the nutmeg and the seeds of the North American papaw. 

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