Coffin

A coffin is a funerary box from the French cofin used in the display and containment of dead people, either for burial or cremation.
The word took two different paths, Cofin in Old French originally meaning basket, became Coffin in English and became Couffin in modern French which nowadays means a cradle.
Speakers of North American English may make a distinction between coffin and casket. A coffin is generally understood to denote a funerary box having six sides, while a casket generally denotes a four-sided (almost always rectangular) box.