knapsack

Meanings

1. A case of canvas or leather, for carrying items on the back.
2. A set of values from which a subset is chosen.

1. To go hiking while burdened with a knapsack, usually overnight or for longer.

Etymology

From Low German knapzak or Dutch knapzak (older form cnapsack), from Middle Dutch cnappen (“to bite with teeth”), ultimately from knappen (“to eat, crack”), of imitative origin, + sack. German Knappsack is from Dutch.