|Origin:||Perhaps from Old French moufle 'glove', from Medieval Latin moffula; MUFF1|
to make a sound less loud and clear, especially by covering something
The falling snow muffled the sound of our footsteps.
Her voice was muffled by the pillow in which she had hidden her face.
2 also muffle somebody upDC [usually passive]
to cover yourself or another person with something thick and warm
be muffled (up) in something
Penelope arrived, muffled up in a thick coat.