n.
   - a low continuous background noise.
 - a quietly spoken utterance. 
▸the quiet or subdued expression of a feeling.
 - Medicine  a recurring sound heard in the heart through a stethoscope that is usually a sign of disease or damage.
 
v.
  - say something in a murmur.
 - make a low continuous sound.
 
 
  Phrase
  
    
      - without a murmur
 without complaining. 
    
   
  Derivative
  
    - murmurer n.
  - murmurous adj.
 
   
  Etymology
  ME: from OFr. murmure, from murmurer ‘to murmur’, from L. murmurare, from murmur ‘a murmur’.