G0003
Ἀβαδδών
Abaddon
Ἀβαδδών (Heb. אֲבַדּוֹן, destruction; LXX, ἀπώλεια, only in Wisdom Lit., of the place of the ruined dead: Job.26:6, 28:22, 31:12, Psa.88:12, Pro.15:11*), indecl.; in NT, Abaddon, the angel of the Abyss: Rev.9:11.† (AS)
Full Thayer's lexicon entry
Ἀβαδδών — Abaddṓn
Ἀβαδδών, indeclinable, אֲבַדּון,
1. ruin, destruction (from אָבַד to perish), Job 31:12.
2. the place of destruction equivalent to Orcus, joined with שְׁאול, Job 26:6; Pro 15:11.
3. as a proper name it is given to the angel-prince of the infernal regions, the minister of death and author of havoc on earth, and is rendered in greek by Ἀπολλύων Destroyer, Rev 11:11.
1 occurrence