quin·tu·ple 
(kwĭn-tpəl, -ty-, -tŭpəl, kwĭntə-pəl)
(kwĭn-tpəl, -ty-, -tŭpəl, kwĭntə-pəl)adj.
1. Consisting of five parts or members.
2. Five times as much in size, strength, number, or amount.
n.
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 the Appendix of Indo-European roots + -ple, -fold (from Latin -plus; see pel-2 in the Appendix of Indo-European roots).]
quin·tuply adv.