BelialyoudaoicibaDictYouDict[Belial 词源字典]
early 13c., from Hebrew bel'yya'al "destruction," literally "worthless," from b'li "without" + ya'al "use." Wickedness as an evil force (Deut. xiii:13); later treated as a proper name for Satan (2 Cor. vi:15), though Milton made him one of the fallen angels.[Belial etymology, Belial origin, 英语词源]