Dictionary entry

καταχθόνιος

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

* κατα-χθόνιος, -ον

(< χθών, the earth),

subterranean, under the earth (in cl., of the infernal gods): of the departed in Hades, opp. to ἐπουράνιος, ἐπίγειος, Phl 2:10.†