"table covered with a checked cloth," specialized sense of checker (n.1), late 14c. (in Anglo-Latin from c. 1300); especially a table for counting money or keeping accounts (revenue reckoned with counters); later extended to "the fiscal department of the English Crown; the Exchequer (mid-14c.; in Anglo-Latin from late 12c.).
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Definitions of chequer
mark into squares or draw squares on; draw crossed lines on;