Source : Webster's Revised Unabridged Dictionary (1913)

Christianly \Chris"tian*ly\, adv.
   In a manner becoming the principles of the Christian
   religion.

         Sufferings . . . patiently and Christianly borne.
                                                  --Sharp.

Christianly \Chris"tian*ly\, a.
   Christianlike. --Longfellow.

Source : WordNet®

christianly
     adj : becoming to or like a Christian; "gentle christianly
           behavior"