[kwo-droo-puh l, -druhp-uh l, kwod-roo-puh l]
fourfold; consisting of four parts: a quadruple alliance.
four times as great.
Music. having four beats to a measure.
a number, amount, etc., four times as great as another.
something, as a series of acrobatic somersaults, made up of four clearly defined parts or stages: the first trapeze artist to perform a quadruple successfully.
verb (used with or without object), quad·ru·pled, quad·ru·pling.
to make or become four times as great: To serve 24 people, quadruple the recipe. My savings quadrupled in 20 years.
Origin of quadruple
1325–75; Middle EnglishRelated formsquad·ru·ple·ness, nounquad·ru·ply, adverb
< Latin quadruplus;
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for quadruply
Historical Examples of quadruply
British Dictionary definitions for quadruply
to multiply by four or increase fourfold
four times as much or as many; fourfold
consisting of four parts
Derived Formsquadruply, adverb
a quantity or number four times as great as another
Word Origin for quadruple
C16: via Old French from Latin quadruplus, from quadru- (see quadri-) + -plus -fold
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 quadruply
late 14c., from Middle French quadrupler, from Late Latin quadruplare "make fourfold, multiply by four," from Latin quadruplus (adj.) "quadruple, fourfold" (see quadruple (adj.)).
1550s, from Middle French quadruple (13c.), from Latin quadruplus "fourfold," from quadri- "four" (see quadru-) + -plus "more" (see plus).
Online Etymology Dictionary, © 2010 Douglas Harper