Etymology

From Proto-Indo-European *ǵénu-. Compare Latin gena, Old Irish gin, Welsh gen, Old Armenian ծնաւտ ‎(cnawt), Ancient Greek γένυς ‎(génus), Sanskrit हनु ‎(hánu), Avestan 𐬰𐬁𐬥𐬎 ‎(zānu), Persian چانه ‎(čâne).