muffle
verb
[ ˈmʌf(ə)l ]
• wrap or cover for warmth.
• "everyone was muffled up in coats and scarves"
• cover or wrap up (a source of sound) to reduce its loudness.
• "the soft beat of a muffled drum"
muffle
noun
• a receptacle in a furnace or kiln in which things can be heated without contact with combustion products.
• "a muffle furnace"
Origin:
late Middle English (as a verb): perhaps a shortening of Old French enmoufler ; the noun (mid 17th century) from Old French moufle ‘thick glove’.