from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A knapsack.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a bag carried on the back or shoulder, supported by straps
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a bag carried by a strap on your back or shoulder
German : dialectal Ruck, back (from Middle High German rück, ruck, from Old High German hrukki; see sker-2 in Indo-European roots) + Sack, sack (from Middle High German sac, from Old High German, from Latin saccus; see sack1).(American Heritage® Dictionary of the English Language, Fourth Edition)
Borrowed from the German Rucksack, from Rücken (back) and Sack (sack). (Wiktionary)