abaddon

plural abaddons

1. BritisharchaicslangAn informer; a criminal who informs on other criminals to the authorities.

   The prisoner, Money Moses, better known among thieves and fences as Moses the abaddon, has been, to my knowledge, for the last twenty years a receiver and dealer in stolen property.

   c. 1839, Report of the Trial of the Great Gold Dust Robbery

   Synonyms: grass, nark, stool pigeon, informant

alternative Abaddan · alternative Abadon

1. The destroyer, or angel of the bottomless pit; Apollyon;First known use First attested from 1350 to 1470
2. poeticHell; the bottomless pit; a place of destruction.First known use Late 17ᵗʰ century.

   In all her gates, Abaddon rues Thy bold attempt.

   1671, John Milton, “The Fourth Book”, in Paradise Regain’d. A Poem. In IV Books. To which is Added, Samson Agonistes, London: […] J[ohn] M[acock] for John Starkey […], →OCLC, page 4