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quin·tu·ple(kwĭn-to͞o′pəl, -tyo͞o′-, -tŭp′əl, kwĭn′tə-pəl)
1. Consisting of five parts or members.
2. Five times as much in size, strength, number, or amount.
A fivefold amount or number.
tr. & intr.v. quin·tu·pled, quin·tu·pling, quin·tu·ples
To multiply or be multiplied by five.
[French, from Old French : Latin quīntus, fifth; see penkwe in Indo-European roots + -ple, -fold (from Latin -plus; see pel- in Indo-European roots).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Mathematics) in a quintuple manner; involving five times as much
the reply made to a defender's quadruply
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014