respectfully

from WordNet (r) 3.0 (2006)

respectfully
    adv 1: in a respectful manner; "might I respectfully suggest to
           the Town Council that they should adopt a policy of
           masterly inactivity?" [ant: {disrespectfully}]

from The Collaborative International Dictionary of English v.0.48

Respectful \Re*spect"ful\ (-f?l), a.
   Marked or characterized by respect; as, respectful
   deportment.
   [1913 Webster]

         With humble joy and with respectful fear. --Prior.
   [1913 Webster] -- {Re*spect"ful*ly}, adv. --
   {Re*spect"ful*ness}, n.
   [1913 Webster]