Quadruply

quad·ru·ple  (kw-drpl, -drpl, kwdr-pl)

adj.

1. Consisting of four parts or members.

2. Four times as much in size, strength, number, or amount.

3. Music Having four beats to the measure.

n.

A fourfold amount or number.

tr. & intr.v. quad·ru·pled, quad·ru·pling, quad·ru·ples

To multiply or be multiplied by four: quadrupled the order; quadrupled in size.

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[From Middle English quadriple, fourfold amount, and quadruple, tooth with four roots, both from Old French quadruple, from Latin quadruplum, from neuter of quadruplus, fourfold : quadru-, quadri-, quadri- + -plus, -fold; see pel-² in Indo-European roots.]

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quad·ruply adv.