A song to combat the cold.

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rewarm

verb

re·​warm (ˌ)rē-ˈwȯrm 

rewarmed; rewarming

Synonyms of rewarm

transitive verb

: to make (something or someone) warm again : to bring (something or someone) back to a hotter temperature; rewarm a cup of coffee

"If you're outside and you start feeling your fingers get a little bit tingly or painful, you shouldn't ignore those signs," [Dr. Edmundo] Mandac said. "Go in and rewarm yourself."—

WTOP.com (Washington, D.C.)