apprehend vs ideate

apprehend

verb
  • To take hold of (something) with understanding; to conceive (something) in the mind; to become cognizant of; to understand. 

  • To be or become aware of (something); to perceive. 

  • To have a conception of (something); to consider, to regard. 

  • To seize or take (something); to take hold of. 

  • To understand. 

  • To be of opinion, believe, or think; to suppose. 

  • To seize or take (a person) by legal process; to arrest. 

  • To be apprehensive; to fear. 

  • To anticipate (something, usually unpleasant); especially, to anticipate (something) with anxiety, dread, or fear; to dread, to fear. 

  • To acknowledge the existence of (something); to recognize. 

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. 

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