Liddell-Scott-Jones

κατήγωρ (katēgōr) an accuser ^G:N-M

κατήγωρ-ος, ὁ,

accuser, [NT+5th c.BC+]; δημόσιος κ. public prosecutor, [Refs 3rd c.AD+]; betrayer, φρονημάτων ἡ γλῶσσ᾽ ἀληθὴς γίγνεται κ. [Refs 5th c.BC+]; πνεῦμα ὧν κατήγωρον,.. δρόμοις [ἡ φύσις] ἐκβιᾶται κατηγορέειν what the respiration reveals, [Refs 5th c.BC+]

_{LSJ Scripture Refs: Rev.12.10}