A hand-

Col - (colo-, kalo-, collo-; ancient Greek κολών, lat. colōna, from κόλον - large intestine); The etymology of the word comes from the Latin colostomia - the cecum of a pig, 12 letters.

The name apparently comes from Sanskrit. कालनाथ “(oblong) stroke” or कलानाट्टूष्ठ “rounded stroke”. This word refers to the dilated part of the large intestine.