[Other] The word "devil" is, in European languages, a corruption of the Greek diabolos, meaning "adversary, prosecutor", which is in turn a translation of the Hebrew Satan. In the plural is was also used in medieval theology to denote Satan's attending spirits.
DEVIL
Meaning of DEVIL in English
Encyclopedia Mythica English dictionary. Английский энциклопедический словарь греческой мифологии. 2012