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octuple

[ok-too-puh l, -tyoo-; ok-too-puh l, -tyoo-]
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adjective
  1. eightfold; eight times as great.
  2. having eight effective units or elements.
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verb (used with object), oc·tu·pled, oc·tu·pling.
  1. to make eight times as great.
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noun
  1. Rowing. a shell rowed by a crew of eight, each rower using a pair of oars.
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Origin of octuple

1595–1605; < Latin octuplus, equivalent to octu-, variant (before labials) of octō- octo- + -plus -fold
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for octuple

octuple

noun
  1. a quantity or number eight times as great as another
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adjective
  1. eight times as much or as many
  2. consisting of eight parts
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verb
  1. (tr) to multiply by eight
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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 Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for octuple

adj.

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

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Online Etymology Dictionary, © 2010 Douglas Harper