from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Consisting of ten parts or members.
  • adj. Ten times as much in size, strength, number, or amount.
  • n. A tenfold amount or number.
  • transitive v. To multiply or be multiplied by ten.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Ten times as much.
  • n. An amount multiplied by ten.
  • v. To multiply by ten.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Tenfold.
  • n. A number ten times repeated.
  • transitive v. To make tenfold; to multiply by ten.

from The Century Dictionary and Cyclopedia

  • Tenfold; containing ten times as many.
  • n. A number ten times repeated.
  • To increase tenfold.


Middle English, from Old French, from Late Latin decuplus : Latin decem, ten; see dekm̥ in Indo-European roots + Latin -plus, -fold; see pel-2 in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From French décuple, from Late Latin decuplus ("tenfold"), from Latin decem ("ten"), and plico ("fold"). (Wiktionary)


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