verb/ʁe.ʃo.fe/
to reheat; to heat up, warm up
“Mais n'aie pas peur de la froidure, Hélène / Je te réchaufferai, je te réchaufferai” — But don't be afraid of the cold, Helen / I will warm you up, I will warm you up
From Old French reschauffer and its variants. By surface analysis, ré- + échauffer.