A chamberpot is made of earthenware (and more recently plastic)
and is used for urinating (especially at night). Obviously, it
needs to be emptied in the morning. Chamber pots go back to before
plumbing was built into houses, They were for pump-ships, ships
that pass in the night. pump-ships night urinations, The pots were
usually in a set of porcalin chamber ware: water Jug; wash bole;
tooth-brush holder; shaving cup; soap bowl; and chamber pot; wodden
wash table.