Source : Webster's Revised Unabridged Dictionary (1913)

Manly \Man"ly\, a. [Compar. {Manlier}; superl. {Manliest}.] [Man
   + -ly. Cf. {Manlike}.]
   Having qualities becoming to a man; not childish or womanish;
   manlike, esp. brave, courageous, resolute, noble.

         Let's briefly put on manly readiness.    --Shak.

         Serene and manly, hardened to sustain The load of life.
                                                  --Dryden.

   Syn: Bold; daring; brave; courageous; firm; undaunted; hardy;
        dignified; stately.

Manly \Man"ly\, adv.
   In a manly manner; with the courage and fortitude of a manly
   man; as, to act manly.

Source : WordNet®

manly
     adj 1: possessing qualities befitting a man [syn: {manful}, {manlike}]
            [ant: {unmanly}]
     2: characteristic of a man; "a deep male voice"; "manly sports"
        [syn: {male}, {manful}, {manlike}, {virile}]
     adv : in a manful manner; with qualities thought to befit a man;
           "having said her say Peggy manfully shouldered her
           burden and prepared to break up yet another home" [syn:
            {manfully}] [ant: {unmanfully}]
     [also: {manliest}, {manlier}]