This root form (lemma) is used in 1 different forms in the NT: καταχθονίων (GMP).
It is glossed in 1 way: ‘subterranean realms’.
OET PHP 2:10 Greek word=καταχθονίων (kataⱪthoniōn) Morphology=GMP English gloss=‘subterranean realms’ SR GNT PHP 2:10 word 14