rucksack
/ˈrʌksak
/ /ˈrʊksak/noun
A bag with shoulder straps which allow it to be carried on someone’s back, typically made of a strong, waterproof material and widely used by hikers.In addition, no bags, rucksacks & backpacks larger than eight inches square will be allowed beyond the ticketing and security checkpoints or into the grounds of the Belfry....
- He was carrying a small rucksack and a small green carrier bag.
- He was wearing a green jacket and dark coloured waterproof trousers and had been carrying a grey rucksack.
Origin
Mid 19th century: from German, from rucken (dialect variant of Rücken 'back') + Sack 'bag, sack'.
This is an adoption of a German word, from rucken (a dialect variant of Rücken ‘back’) and Sack ‘bag, sack’.