bleat vs rheum

bleat

noun
  • The characteristic cry of a sheep or a goat. 

verb
  • Of a sheep or goat, to make its characteristic cry; of a human, to mimic this sound. 

  • Of a person, to complain. 

rheum

noun
  • Tears. 

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

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

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