Source : Webster's Revised Unabridged Dictionary (1913)

Devout \De*vout"\, a. [OE. devot, devout, F. d['e]vot, from L.
   devotus devoted, p. p. of devovere. See {Devote}, v. t.]
   1. Devoted to religion or to religious feelings and duties;
      absorbed in religious exercises; given to devotion; pious;
      reverent; religious.

            A devout man, and one that feared God. --Acts x. 2.

            We must be constant and devout in the worship of
            God.                                  --Rogers.

   2. Expressing devotion or piety; as, eyes devout; sighs
      devout; a devout posture. --Milton.

   3. Warmly devoted; hearty; sincere; earnest; as, devout
      wishes for one's welfare.

   {The devout}, devoutly religious persons, those who are
      sincerely pious.

   Syn: Holy; pure; religious; prayerful; pious; earnest;
        reverent; solemn; sincere.

Devout \De*vout"\, n.
   1. A devotee. [Obs.] --Sheldon.

   2. A devotional composition, or part of a composition;
      devotion. [Obs.] --Milton.

Source : WordNet®

devout
     adj 1: devoutly religious; "a god-fearing and law-abiding people"
            H.L.Mencken [syn: {god-fearing}, {pious}]
     2: earnest; "one's dearest wish"; "devout wishes for their
        success"; "heartfelt condolences" [syn: {dear}, {earnest},
         {heartfelt}]