colic vs murmur

colic

noun
  • Severe fussiness and crying, especially of infants with certain medical conditions. 

  • A medicinal plant used to relieve such symptoms. 

  • Severe pains that grip the abdomen or the disease that causes such pains (due to intestinal or bowel-related problems). 

adj
  • Relating to the colon; colonic. 

murmur

noun
  • A muttered complaint or protest; the expression of dissatisfaction in a low muttering voice; any expression of complaint or discontent. 

  • The sound made by any condition which produces noisy, or turbulent, flow of blood through the heart. 

  • Soft indistinct speech. 

  • Any low, indistinct sound, like that of running water. 

verb
  • To say (something) indistinctly, to mutter. 

  • To speak or make low, indistinguishable noise; to mumble, mutter. 

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