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late 14c., "roll of parchment containing writing, large book," from Old French volume, from Latin volumen (genitive voluminis) "roll (as of a manuscript), coil, wreath," from volvere "to turn around, roll" (see volvox). Meaning "book forming part of a set" (1520s) is from a sense in French. Generalized sense of "bulk, mass, quantity" (1620s) developed from that of "bulk or size of a book" (1520s), again following the sense evolution in the French version of the word.
volume vol·ume (vŏl'yōōm, -yəm)
The amount of space occupied by a three-dimensional object or region of space, expressed in cubic units.
The capacity of such a region or of a specified container, expressed in cubic units.
A dose or capsule of Valium, a tranquilizer: I'd take maybe five volumes in the morning (1970s+)