Difference between Mumble and Mussitate

MUMBLE vs MUSSITATE: NOUN

To speak with the lips partly closed, so as to render the sounds inarticulate and imperfect; to utter words in a grumbling indistinct manner, indicating discontent or displeasure; to mutter.
To chew something gently with closed lips.
To chew or bite gently, as one without teeth.
To suppress, or utter imperfectly.
To utter with a low, inarticulate voice.

Grind with the gums
Usually in a low voice
Talk indistinctly
To cover up or hide, as if by uttering in a mumbling, unintelligible fashion; say over inarticulately: with up.
To chew gently; work (food) by rubbing it with the gums on account of lack of teeth.
To utter in a low inarticulate voice.
To chew or bite softly or with the gums; work food with the gums on account of lack or defectiveness of teeth.
To speak with the vocal organs partly closed, so as to render the sounds inarticulate and imperfect; speak in low tones, hesitatingly, or deprecatingly.

Unintelligible, Gibberish, Groan, Incoherently, Unintelligibly, Whisper, Blurt, Inaudibly, Peg, Slur, Maffle, Mussitate, Maunder, Gum, Mutter

Gurgle, Sob, Inarticulate, Yell, Sotto voce, Unintelligible, Gibberish, Groan, Unintelligibly, Whisper, Blurt, Inaudibly, Slur, Maffle, Mutter

Mumble Rap: cultural laziness or a true reflection of contemporary times?
Ask first if he knows what it means to mumble.
The teller should not mumble or be difficult to hear.
The bar spotted with regulars who mumble hello to him.
All The Mumble About kreeg hierdoor de nodige attentie waarde.
If that happens, the debate will be mumble jumbled.
Speak with him and he will mumble about Yarrow.
Attempts to kill and eat Mumble great thing.
You soon learn to mumble with great incoherence.
After installation, you should have a new Mumble folder in your Start Menu, from which you can start Mumble.