Webster’s Revised Unabridged Dictionary · 1913
Decuple
Dec′u·ple (dĕk′ū·p'l), a. [F. décuple, L. decuplus, fr. decem ten.] Tenfold. [R.]
Dec′u·ple, n. A number ten times repeated. [R.]
Dec′u·ple, v. t. [imp. & p. p. Decupled; p. pr. & vb. n. Decupling.] To make tenfold; to multiply by ten. [R.]