It can also be translated as "cwfan" (pronounced "koo-van"), although this term is more specific to the hull of a ship or boat.
Here are some examples of how "corff" is used:
* Corff dynol - Human body
* Corff y bwystfil - The body of the beast
* Corff y llong - The hull of the ship
Keep in mind that "corff" can have other meanings depending on the context.