swelling vs wheal

swelling

noun
  • Anything swollen, especially any abnormally swollen part of the body. 

  • The state of being swollen. 

  • A rising, as of passion or anger. 

wheal

noun
  • A small raised swelling on the skin, often itchy, caused by a blow from a whip or an insect bite etc. 

  • A mine. 

verb
  • Synonym of wale. 

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