Compound of *도톨 (*twothwol, “acorn”) + 밤〯 (pǎm, “chestnut”), having underwent a regular /p > W > w/ chain shift. For the first component, compare 도토〮리〯 (twòthwólǐ, “acorn”).
도톨〮왐〮 (twòthwólwám)