In or toward the middle of a stream or river; the central current area of flowing water.
From amid (in the middle) + stream, appearing in English literature since at least the 1500s to describe position in water. A natural nautical term formed from common English elements.
Amidstream was where river travelers feared most—caught in the strongest current and furthest from either shore, and that's why so many old stories and folktales featured dramatic amidstream events.
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