cogitation vs meditation

cogitation

noun
  • The process of cogitating; contemplation, deliberation, reflection, meditation. 

  • A carefully considered thought, idea, notion. 

meditation

noun
  • A devotional exercise of, or leading to contemplation. 

  • A contemplative discourse, often on a religious or philosophical subject. 

  • Careful and thorough thought. 

  • A musical theme treated in a meditative manner. 

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