/ kəmˈpendiəm; NAmE / noun
( pl. com·pen·dia / -diə; NAmE / or com·pen·diums ) a collection of facts, drawings and photographs on a particular subject, especially in a book
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WORD ORIGIN
late 16th cent.: from Latin , profit, saving (literally what is weighed together ), from compendere , from com- together + pendere weigh.