Source : Webster's Revised Unabridged Dictionary (1913)

Nobly \No"bly\, adv.
   1. Of noble extraction; as, nobly born or descended.

   2. In a noble manner; with greatness of soul; heroically;
      with magnanimity; as, a deed nobly done.

   3. Splendidly; magnificently.

   Syn: Illustriously; honorably; magnanimously; heroically;
        worthly; eminently; grandly.

Source : WordNet®

nobly
     adv : in a noble manner; "she has behaved nobly"