Plurals: Latin -X → -CES (APEX → APICES) — Words Only

Latin-origin nouns ending in -X whose plural replaces -X with a -CES form

77 words

LUX VOX APEX CALX CRUX FALX IBEX BORAX CALIX CALYX CAREX CIMEX CODEX CULEX CYLIX
HELIX HYRAX INDEX LATEX MUREX RADIX VARIX AUSPEX CAUDEX CERVIX CORTEX FORNIX
HALLUX MATRIX POLLEX SCOLEX SPADIX THORAX VERTEX VORTEX ANTHRAX ARUSPEX EDITRIX
ORATRIX RECTRIX SIMPLEX TECTRIX TORTRIX ANTHELIX APPENDIX AVIATRIX CICATRIX
EPICALYX HARUSPEX HERETRIX HERITRIX MICROLUX MILLILUX PONTIFEX SUBINDEX TRACTRIX
ANTIHELIX BISECTRIX DIRECTRIX EXECUTRIX FELLATRIX MEDIATRIX NEOCORTEX PROTHORAX
SUBCORTEX TESTATRIX COADJUTRIX DOMINATRIX GENERATRIX INHERITRIX MESOTHORAX
METATHORAX SUPERHELIX HYDROTHORAX PNEUMOTHORAX CEPHALOTHORAX ADMINISTRATRIX