A shoulder is the joint where your arm connects to your body, and the area around it. It can also mean the edge or side of a road where cars can stop.
“Shoulder” comes from Old English “sculdor,” referring to the upper part of the back and the joint for the arm. It’s related to other Germanic words about the shoulder or upper body. The road sense developed later by analogy, as the ‘side’ that supports the main road.
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