 The Serbian form has parallels in virtually all Slavic languages : Bulgarian and Macedonian <unk> ( vampir ) , Bosnian : <unk> , Croatian vampir , Czech and Slovak <unk> , Polish <unk> , and ( perhaps East Slavic @-@ influenced ) <unk> , Ukrainian <unk> ( upyr ) , Russian <unk> ( upyr ' ) , Belarusian <unk> ( upyr ) , from Old East Slavic <unk> ( <unk> ' ) ( note that many of these languages have also borrowed forms such as " vampir / <unk> " subsequently from the West ; these are distinct from the original local words for the creature ) . The exact etymology is unclear . Among the proposed proto @-@ Slavic forms are * <unk> and * <unk> . 
