Defn: To become greatly or repeatedly increased; to be multiplied; to be greatly augmented; as, the noise redoubles.

REDOUBT Re*doubt" (r*dout"), n. Etym: [F. redoute, fem., It. ridotto, LL. reductus, literally, a retreat, from L. reductus drawn back, retired, p. p. of reducere to lead or draw back; cf. F. réduit, also fr. LL. reductus. See Reduce, and cf. Reduct, R, Ridotto.] (Fort.) (a) A small, and usually a roughly constructed, fort or outwork of varying shape, commonly erected for a temporary purpose, and without flanking defenses, — used esp. in fortifying tops of hills and passes, and positions in hostile territory. (b) In permanent works, an outwork placed within another outwork. See F and i in Illust. of Ravelin. [Written also redout.]

REDOUBT
Re*doubt", v. t. Etym: [F. redouter, formerly also spelt redoubter;
fr. L. pref. re- re- + dubitare to doubt, in LL., to fear. See
Doubt.]

Defn: To stand in dread of; to regard with fear; to dread. [R.]

REDOUBTABLE Re*doubt"a*ble (-*b'l), a. Etym: [F. redoutable, formerly also spelt redoubtable.]

Defn: Formidable; dread; terrible to foes; as, a redoubtable hero; hence, valiant; — often in contempt or burlesque. [Written also redoutable.]

REDOUBTED
Re*doubt"ed, a.

Defn: Formidable; dread. "Some redoubled knight." Spenser.
Lord regent, and redoubted Burgandy. Shak.

REDOUBTING
Re*doubt"ing, n.

Defn: Reverence; honor. [Obs.]
In redoutyng of Mars and of his glory. Chaucer.