MUM'BLE, verb intransitive
1. To mutter; to speak with the lips or other organs partly closed, so as to render the sounds inarticulate and imperfect; to utter words with a grumbling tone.
Peace, you mumbling fool.
--A wrinkled hag, with age grown double,
Pickling dry sticks and mumbling to herself.
2. To chew or bite softly; to eat with the lips close.
MUM'BLE, verb transitive To utter with a low inarticulate voice.
He with mumbled prayers atones the deity.
1. To mouth gently, or to eat with a muttering sound.
2. To suppress or utter imperfectly.