murmuration vs mussitation

murmuration and mussitation both are nouns.

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

As nouns, murmuration and mussitation are synonyms defined as:

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

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

murmuration (noun)	mussitation (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