Праалтайский: *kukata ( ~ -k`-)
Англ. значение: carpal joint
Значение: кистевой сустав
Комментарии: The meaning in Mongolian is probably original here; in Japanese one has to suppose a shift 'carpal joint of feet' > 'heel'; in TM - > 'covering for the carpal joint (wrist)' = 'mittens'.