vbl. sb. [f. QUADRUPLE v. + -ING1.] The action of the vb.
1694. Phil. Trans., XVIII. 70. The doubling, trebling, quadrupling, &c. of Rations is performed by squaring, cubing, biquadrating, &c. of the terms.
1885. Pall Mall Gaz., 27 March, 1/1. Supplemented, say, by the quadrupling of our field artillery.