Lexical Definition

‎Ἀβαδδών‎ Abaddṓn (ab-ad-dohn') Abaddon N:N--T
of Hebrew origin (‎אֲבַדּוֹן‎)

Abaddon.

Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
Ἀβαδδών Abaddon Rev.9.11
Αβαδών Abadon LXX.1Chr.9.36

Abbott-Smith

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.†

Abbott-Smith References

Book Refs
Job 26:6 · 28:22 · 31:12
Psalms 88:12*
Proverbs 15:11
Revelation 9:11