itch vs longing

itch

noun
  • A constant teasing desire or want. 

  • A sensation felt on an area of the skin that causes a person or animal to want to scratch said area. 

verb
  • To scratch or rub so as to relieve an itch. 

  • To feel itchy; to feel a need to be scratched. 

  • To cause to feel an itch. 

  • To have a constant, teasing urge; to feel strongly motivated; to want or desire something. 

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 

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