from
The Collaborative International Dictionary of English v.0.48
Mumble \Mum"ble\, v. t. [imp. & p. p. {Mumbled}; p. pr. & vb. n.
{Mumbling}.] [OE. momelen; cf. D. mompelen, mommelen, G.
mummelen, Sw. mumla, Dan. mumle. Cf. {Mum}, a., {Mumm},
{Mump}, v.]
1. 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.
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Peace, you mumbling fool. --Shak.
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A wrinkled hag, with age grown double,
Picking dry sticks, and mumbling to herself.
--Otway.
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2. To chew something gently with closed lips.
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