to form into a wheel or circular shape; to surround or encircle.
From 'en-' (prefix) + 'wheel' (from Old English 'hweol', from Proto-Germanic 'hwehwl-'). The prefix suggests creating a wheel or moving in circular motion.
Ancient formations of soldiers and wagons used this word—when you 'enwheel' your position, you're creating a circle for protection, making yourself invulnerable from the outside.
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