foiled vs in vain

foiled

adj
  • Having a foil. 

in vain

adj
  • Unsuccessful, failed. 

adv
  • In a disrespectful manner, without honoring the proper meaning; insincerely or without proper respect. 

  • Without success or a result; ending in failure. 

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