muffle >> ˈmʌf(ə)l
Definition: [verb] wrap or cover for warmth.
Example: everyone was muffled up in coats and scarves
Definition: [verb] cover or wrap up (a source of sound) to reduce its loudness.
Example: the soft beat of a muffled drum
Definition: [noun] a receptacle in a furnace or kiln in which things can be heated without contact with combustion products.
Example: a muffle furnace