A part of a bird, insect, or airplane that sticks out from the body and is used for flying or lifting. It can also mean a side section of a building or group.
From Old Norse 'vængr', meaning 'wing', which entered English through Viking influence. It replaced older native words over time.
Bird wings gave us the basic idea, and then we borrowed it for planes and buildings. Once a shape or function becomes familiar, we start reusing the word everywhere that pattern appears.
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