Perria or Pehria is a fairy-like mountain figure in Albanian mythology and folklore.
Compare Romanian pârâu (“torrent, stream”), assimilated to râu (“river”).
Alternatively, from Old Albanian përruo, from Bulgarian порой (poroj, “torrent”).
[2] In Albanian popular belief, she is depicted as female mountain-spirits clad in white.
Their duty is to punish anyone who is wasteful with bread by disfiguring the person and making him a "crooked hunchback".