Tumi (Quechua for 'Knife', variants: 'Tome', 'Tume'), is a generic term encompassing the many kinds of sharp tools utilized in pre- and post-colonial eras of the Central Andes region, Tumis were employed for a diverse set of purposes such as kitchen knives, agricultural tools, warrior or hunting secondary weapons, sacrificial knives, barber implements, pendants, or medical tools. In addition, the tumi form, in metal, was used as a type of coin.[1] Pre-columbian Tumis were usually made of metal or stone.
A esto hay que agregar que la forma tumi, en metal, fue empleada como una especie de moneda, en vastas regiones del área andina, como ha puesto de manifiesto Olaf Holm (1967).