mussitation vs murmuration

mussitation and murmuration both are nouns.

Word	Noun	Adjective	Verb	Adverb
mussitation	Yes	No	No	No
murmuration	Yes	No	No	No

As nouns, mussitation and murmuration are synonyms defined as:

mussitation and murmuration: a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech

Other synonyms of mussitation include murmur, murmuring, mutter, muttering.

mussitation (noun)	murmuration (noun)
a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech	a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech