çok

knee

From Avestan zanu- "chin" which is cognate with zhnûm or zhnu "knee".

Proto-Indo-European root; "jaw, jawbone" but also forming words for "chin, cheek",

Sanskrit hanuh "jaw," Avestan zanu- "chin",
Lithuanian žándas "jawbone",
Greek genus "chin, lower jaw" geneion "chin",
Old Irish gin "mouth",
Welsh gen "jawbone, chin",
Old English cin, "chin".

çene (chin), zenî (chin), argûşk, erzînk, çeng, çen