MUT'TER, L. mutio, muttio, and musso,mussito allied perhaps to muse, which see.
1. To utter words with a low voice and compressed lips, with sullenness or in complaint to grumble to murmur.
Meantime your filthy foreigner will stare,
And mutter to himself.
2. To sound with a low rumbling noise.
Thick lightnings flash, the muttering thunder rolls.
MUT'TER, To utter with imperfect articulations, or with a low murmuring voice.
Your lips have spoken lies,your tongue hath muttered perverseness. Isaiah 59
They in sleep will mutter their affairs.
MUT'TER, n. Murmur obscure utterance.