Plural of quarter; can mean living accommodations, four equal parts, or US coins worth 25 cents.
From Latin quartus (fourth), through Old French quartier. Originally meant 'one-fourth part,' then extended to mean residential districts (quarters of a city), living spaces, and the coin representing one-fourth of a dollar.
The word 'quarters' beautifully demonstrates semantic expansion - from the mathematical concept of 'one-fourth' came military barracks (quartering soldiers), city neighborhoods (French Quarter), mercy in battle ('give quarter'), and even the coin in your pocket, all united by the underlying concept of division and allocation of space.
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