cloak vs illuminate

cloak

verb
  • To cover as with a cloak. 

  • To cover up, hide or conceal. 

  • To render or become invisible via futuristic technology. 

noun
  • A long outer garment worn over the shoulders covering the back; a cape, often with a hood. 

  • That which conceals; a disguise or pretext. 

  • A blanket-like covering, often metaphorical. 

  • A text replacement for an IRC user's hostname or IP address, making the user less identifiable. 

illuminate

verb
  • To shine light on something. 

  • To be exposed to light. 

  • To glow; to light up. 

  • To decorate the page of a manuscript book with ornamental designs. 

  • To decorate something with lights. 

  • To clarify or make something understandable. 

  • To make spectacular. 

  • To direct a radar beam toward. 

noun
  • Someone thought to have an unusual degree of enlightenment. 

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