Pram (ship)
A pram or pramm describes a type of shallow-draught flat-bottomed ship, usually propelled by pushing the ship through the water using a long pole, although sailing prams also exist. The name pram derives from the Latin premere.
Historically, prams were often used to transport agricultural cargo or cattle through shallow canals and wetlands in western Europe. During the times of the Great Northern War, those types of watercrafts were used as a floating battery for artillery support during amphibious assault.
There is also an unrelated type of boat called "pram".Gallery