Re-doub'le (-dŭb'l)1, v. t.
(-dŭb'l), v. t. [imp. & p. p. REDOUB-LED; p. pr. & vb. n. REDOUBLING.] [Prefix re and double, Fr. redoubler.] To double again or repeatedly; to increase by continued or repeated additions; to augment greatly; to multiply.
So they Doubly redoubled strokes upon the foe. Shak.