Why us a rucksack called a rucksack?

The term "rucksack" originates from the German Words "Ruck," meaning "back," and "Sack," meaning "bag." It refers to a type of backpack designed to be carried on the back, typically featuring straps for comfort and ease of transport. The name emphasizes its practical use for carrying supplies, especially in outdoor activities like hiking or camping. Over time, the term was adopted into English and has become widely used to describe various types of backpacks.