Bies

Bies (Polish), bes ( , Slovene, Montenegrin) or bijes (Bosnian, Croatian) is an evil spirit or demon in Slavic mythology. Under the influence of Christianity the word often became synonymous with chort.

After the acceptance of Christianity the ''bies'' (same as chort or czort) became identified with the devil, corresponding to the being referred to in Ancient Greek, as either ''daimon'' (δαίμων), ''daimónion'' or ''pneuma'' (πνεῦμα). For example, ''biesy'' (Russian plural of ''bies'') is used in the standard Russian translation of Mark 5:12, where we have ''the devils'' entering the swine in KJV. Compare to Ukrainian ''bisy'' or ''bisytysia'' and Polish ''zbiesić się'' (to go mad). In Slovenian (bes), Croatian (bijes) and Serbian (bes) the word means "rage", "fury". It comes from the proto-Slavic . Provided by Wikipedia