noddle (1)youdaoicibaDictYouDict[noddle 词源字典]
"A person’s head", Late Middle English (denoting the back of the head): of unknown origin.[noddle etymology, noddle origin, 英语词源]
noddle (2)youdaoicibaDictYouDict
"Nod or wag (one’s head)", Mid 18th century: frequentative of the verb nod.