DuckCorp Dico

Found one definition

1.                 From German - English Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   Vati /fˈɑtiː/ <masc, n, sg>
   daddy <n>, dad <n>, pa <n>, pappy <n> [children's speech] , poppy <n> [Am.] , pop <n> [Am.]  [coll.]
      Synonyms: Papa, Papi, Paps