muffle

nouns

a kiln with an inner chamber for firing things at a low temperature

muffle

is a type of (narrower)

a furnace for firing or burning or drying such things as porcelain or bricks

conceal or hide

"smother a yawn"; "muffle one's anger"; "strangle a yawn"

muffle, repress, smother, stifle, strangle

deaden (a sound or noise), especially by wrapping

damp, dampen, dull, muffle, mute, tone down

is derived from

is derived from