chinyoudaoicibaDictYouDict[chin 词源字典]
chin: [OE] Chin has relatives throughout the Germanic languages (German has kinn, for instance, and Dutch kin) and is also represented in words for ‘lower jaw’, ‘mouth’, ‘cheek’, etc in other Indo-European languages (Greek gnáthos ‘jaw’, for example, which gave English prognathous ‘having projecting jaws’). All go back to a prehistoric Indo-European source *genw-.
=> prognathous[chin etymology, chin origin, 英语词源]
chin (n.)youdaoicibaDictYouDict
Old English cin, cinn "chin" (but in some compounds suggesting an older, broader sense of "jawbone"); a general Germanic word (compare Old Saxon and Old High German kinni; Old Norse kinn; German Kinn "chin;" Gothic kinnus "cheek"), from PIE root *genu- "chin, jawbone" (cognates: Sanskrit hanuh "jaw," Avestan zanu- "chin;" Armenian cnawt "jawbone, cheek;" Lithuanian žándas "jawbone;" Greek genus "chin, lower jaw," geneion "chin;" Old Irish gin "mouth," Welsh gen "jawbone, chin").
chin (v.)youdaoicibaDictYouDict
1590s, "to press (affectionately) chin to chin," from chin (n.). Meaning "to bring to the chin" (of a fiddle) is from 1869. Slang meaning "talk, gossip" is from 1883, American English. Related: Chinned; chinning. Athletic sense of "raise one's chin over" (a raised bar, for exercise) is from 1880s.