8 letters · 20 points in Scrabble
noun a bag carried by a strap on your back or shoulder
originFrom 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.
Etymology from Wiktionary, CC BY-SA 3.0