From Middle English chyn, from Old English cin or ċinn, from Proto-Germanic *kinnuz ("chin"), from Proto-Indo-European *ǵénus ("chin, jaw"). Compare West Frisian/Dutch kin, Low German/German Kinn, Danish kind, Icelandic kinn, Welsh gen, Latin gena, Tocharian A śanwem, Ancient Greek γένυς ("jaw"), Armenian ծնոտ, Persian چانه, Sanskrit हनु. gena.