Raised to the power of three (in mathematics), or shaped into a cube form; cut into small cube-shaped pieces.
From 'cube' (from Latin 'cubus,' from Greek 'kubos') plus the past participle suffix '-ed.' The mathematical sense developed as exponent notation became standard.
The phrase 'two cubed equals eight' (2³ = 8) comes from ancient civilizations—they noticed that a cube made from 2×2×2 unit cubes contains exactly 8 smaller cubes, making this the visual meaning of exponents!
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