ideate vs ruminate

ideate

verb
  • To apprehend in thought so as to fix and hold in the mind; to memorize. 

  • To generate an idea. 

adj
  • Produced by an idea. 

noun
  • The actual existence supposed to correspond with an idea; the correlate in real existence to the idea as a thought or existence. 

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 ideate and ruminate occurred in a corpus of books? (source: Google Ngram Viewer )