MUFFLE

(KEEP WARM) [verb] - to wear (esp. thick warm clothes) in order to keep warmI muffled myself (up) against the night air and left. [T]His mother made him muffle himself up before he could go out to play in the snow. [T]Make sure you muffle up well - it's very cold. [I]Muffled in gloves, thick coats and scarves, the protesters stood outside the building all day.