The Collaborative International Dictionary of English v.0.48:

Proudly \Proud"ly\, adv.
   In a proud manner; with lofty airs or mien; haughtily;
   arrogantly; boastfully.
   [1913 Webster]

         Proudly he marches on, and void of fear. --Addison.
   [1913 Webster]

WordNet (r) 3.0 (2006):

proudly
    adv 1: with pride; in a proud manner; "he walked proudly into
           town"

Moby Thesaurus II by Grady Ward, 1.0:

42 Moby Thesaurus words for "proudly":
   Olympianly, aloofly, arrogantly, condescendingly, contemptuously,
   contumeliously, disdainfully, elaborately, elegantly,
   en grand seigneur, erectly, extravagantly, gloriously, grandiosely,
   grandly, haughtily, imperiously, imposingly, impressively,
   independently, like a lord, loftily, luxuriously, magisterially,
   magnificently, majestically, nobly, patronizingly, pridefully,
   self-confidently, self-reliantly, self-respectingly,
   splendaciously, splendidly, splendiferously, sumptuously, superbly,
   superciliously, toploftily, with arms akimbo, with head erect,
   with pride