A woman wearing a backpack or knapsack.
An example of a knapsack is a schoolbag.
Origin of knapsackDutch knapzak from knappen (see knap) + zak, a sack
Origin of knapsackProbably Low German Knappsack knappen to bite ( probably of imitative origin ) Sack bag ( from Middle Low German sak ) ( from Old High German sac ) ( from Late Latin saccus ; see sack 1. )
- (US) A case of canvas or leather, for carrying items on the back.
(third-person singular simple present knapsacks, present participle knapsacking, simple past and past participle knapsacked)
- To go hiking while burdened with a knapsack, usually overnight (longer.)
- My sleeping bag fell off my backpack into the water, while we were knapsacking up the mountain.