itch vs swab

itch

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. 

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. 

swab

verb
  • To use a swab on something, or clean something with a swab. 

noun
  • A sailor; a swabby. 

  • A naval officer's epaulet. 

  • A small piece of soft, absorbent material, such as gauze, used to clean wounds, apply medicine, or take samples of body fluids. Often attached to a stick or wire to aid access. 

  • A mop, especially on a ship. 

  • A piece of material used for cleaning or sampling other items like musical instruments or guns. 

  • A sample taken with a swab (piece of absorbent material). 

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