Letters that make murmurous
s, o, m, r, u are letters that make 'murmurous'
1 possible definitions for 'murmurous'
Under this definition, murmurous is an adjective and has the following properties:
mutter, muttering, murmuration, murmur, murmuring, mussitation are derivatives of 'murmurous'.
soft is similar to murmurous.
"a murmurous brook", "a soughing wind in the pines", "a slow sad susurrous rustle like the wind fingering the pines"- R.P.Warren