 The Serbian form has parallels in virtually all Slavic languages: Bulgarian and Macedonian вампир (vampir), Bosnian: lampir, Croatian vampir, Czech and Slovak upír, Polish wąpierz, and (perhaps East Slavic-influenced) upiór, Ukrainian упир (upyr), Russian упырь (upyr '), Belarusian упыр (upyr), from Old East Slavic упирь (upir') (note that many of these languages have also borrowed forms such as "vampir / wampir" 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 * ǫpyrь and * ǫpirь.
