Diccionario

Ἀβαδδών

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

Ἀβαδδών (Heb. אֲבַדֹּון, destruction; LXX, ἀπώλεια, only in Wisdom Lit., of the place of the ruined dead: Jb 26:6, 28:22, 31:12, Ps 88:12, Pr 15:11*), indecl.;

in NT, Abaddon, the angel of the Abyss: Re 9:11.†