commanding vs elucidation

commanding

noun
  • The act of giving a command. 

adj
  • Tending to give commands, authoritarian. 

  • Impressively dominant. 

  • Dominating from above, giving a wide view 

elucidation

noun
  • A making clear; the act of elucidating or that which elucidates, as an explanation, an exposition, an illustration 

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