Multiple piles of things arranged one on top of another, or to arrange things in piles.
From Old Norse 'stakk,' related to Germanic words for 'stake' or 'post.' Originally referred to a pile of hay or grain, and evolved to mean any pile of stacked items.
Computer scientists named 'stacks' after this very concept—it's a data structure that works exactly like a physical stack of plates: you add to the top and remove from the top. Language and logic perfectly aligned.
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