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octuple

[ok-too-puh l, -tyoo-; ok-too-puh l, -tyoo-] /ˈɒk tʊ pəl, -tyʊ-; ɒkˈtu pəl, -ˈtyu-/
adjective
1.
eightfold; eight times as great.
2.
having eight effective units or elements.
verb (used with object), octupled, octupling.
3.
to make eight times as great.
noun
4.
Rowing. a shell rowed by a crew of eight, each rower using a pair of oars.
Origin
1595-1605
1595-1605; < Latin octuplus, equivalent to octu-, variant (before labials) of octō- octo- + -plus -fold
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for octuple

octuple

/ˈɒktjʊpəl/
noun
1.
a quantity or number eight times as great as another
adjective
2.
eight times as much or as many
3.
consisting of eight parts
verb
4.
(transitive) to multiply by eight
Word Origin
C17: from Latin octuplus, from octo eight + -plus as in duplus double
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for octuple
adj.

"eightfold," c.1600, from Latin octuplus "eightfgold," from octo "eight" (see octo-) + -plus "-fold" (see plus).

Online Etymology Dictionary, © 2010 Douglas Harper
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