longing vs tickling

longing

noun
  • An earnest and deep, not greatly passionate, but rather melancholic desire. 

  • The buying of a financial instrument with the expectation that its value will rise 

tickling

noun
  • The act by which someone is tickled. 

  • A sensation that tickles. 

adj
  • That tickles 

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