devotedly       
adverb uk/dɪˈvəʊ.tɪd.li/ us/dɪˈvoʊ.t̬ɪd.li/
 挚爱地;忠实地,忠诚地
in an extremely loving and loyal way
  Above all, he loved his mother devotedly. 最重要的是,他全心全意地爱着他的母亲。 
 They worked devotedly to try to find the girl. 他们全力以赴寻找那个女孩。 
 See: devoted
 - More examples
 - She had cared for her father devotedly until his death.
 - As a single mother, she devotedly raised her son.
 - The dog followed her devotedly from room to room.