Vârcolac
The vârcolac is a wolf demon from Romanian mythology. Like the Norse Fenris, the vârcolac can swallow the moon and the sun and is thus responsible for eclipses. Some legends say it is a ghost (Strigoi) while others say it is a werewolf (in some versions, a werewolf that emerges from the corpses of babies).
The word vârcolac is a loan from Slavic (cf. Bulgarian varkolak, vulkodlak). The Romanian vârcolac, however, is not identical to the Slavic versions.