Origins. The word haversack is an adaptation of the German Hafersack and also the Dutch haverzak meaning "oat sack", (which more properly describes a small cloth bag on a strap worn over one shoulder and originally referred to the bag of oats carried as horse fodder).
What does the word haversack mean?
: a bag similar to a knapsack but worn over one shoulder.
When was the haversack invented?
The original ditty bags were issued to navy sailors beginning approximately in the early 18th century. Sailors were issued a large canvas sea bag in which to store their spare clothes.