[f. prec.] trans. To increase ten times; loosely, to multiply indefinitely.
1812. Morse, Amer. Univ. Geogr. (ed. 6), II. 723. The annual crop of wheat in the regency, is estimated at 7,200,000 bushels, and with the proper cultivation might be tenfolded.
1858. Bushnell, Nat. & Supernat., xiii. (1864), 420. Transforming the world, tenfolding its forces and uses, and all that constitutes its value. Ibid. (1858), Serm. New Life, viii. (1869), 102. The capacity of religion may be fivefolded, tenfolded, indefinitely increased.
1902. Kropotkin, Mut. Aid, vi. (1904), 208. It tenfolded their forces.