poleaxeyoudaoicibaDictYouDict[poleaxe 词源字典]
"another term for battleaxe (sense 1)", Middle English: related to Middle Dutch pol(l)aex, Middle Low German pol(l)exe (see poll, axe). The change in the first syllable was due to association with pole1; the first element poll- may have referred to a special head of the axe or to the head of an enemy.[poleaxe etymology, poleaxe origin, 英语词源]