Dictionary entry

Triple (2)

Webster's Dictionary 1913

Tri″ple, v. i. [imp. & p. p.Tripled (?); p. pr. & vb. n.Tripling (?).] [Cf. F. tripler. See Triple, a.] To make threefold, or thrice as much or as many; to treble; as, to triple the tax on coffee.