vakka (englanniksi)

unit of dry volume used in Sweden and Finland before introduction of metric system. There has been regional and temporal variation (s: historical / m)
but the 1665 regulation defined it so that it's equal to 36.64 liters (s: historical)
which is quite close to an imperial bushel (s: historical / 36.3687 l)
type of wooden container of varying size (s: historical)
made of bent thin board to make it strong and light (s: historical)
and equipped with a close fitting cap (s: historical)
Any roundish (s: by extension)
voluminous container equipped with a cap (s: by extension)