rheum vs sniffle

rheum

noun
  • Watery or thin discharge of serum or mucus, especially from the eyes or nose, formerly thought to cause disease. 

  • Tears. 

  • Illness or disease thought to be caused by such secretions; a catarrh, a cold; rheumatism. 

sniffle

noun
  • The act, or the sound of sniffling; the condition of having a runny or wet nose, as from a cold or allergies. 

verb
  • To utter with a whimpering or sniffing sound. 

  • To make a whimpering or sniffing sound when breathing, because of a runny nose. 

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