mutter
mut·ter
verb
noun
1.
a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech
Origin
From Middle English muteren, moteren, of imitative origin. Compare Low German mustern, musseln (“to whisper”), German muttern (“to mutter; whisper”), Old Norse muðla (“to murmur”). Compare also Latin muttīre, mutīre.
Related words
Word family
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.