~ COXIGEAL  or in eng COCCYGEAL
~ COXIS     or in eng COCCIS
            id+ | TAIL BONE |
  port COXIM  = CUSHION
  lat  COXA     HIP  BUTTOCK and THIGH
  see> COXA     for more about CUSHION
  see> CATHEDRA for more about CHAIR
  ply> | HUMANS SIT ON THEIR BOTTOM
        THE INTEGRITY OF HUMAN TAIL BONES
  IS PROMOTED BY CHAIRS ENDOWED WITH CUSHIONS |
  med> avoid confusion
       COXIS is the distal APPENDIX of the
  SACRUM but does not articulate with the
  ILIAC or COXA or HIP except in the sense that
  IT REPRESENTS THE IDEA OF MIDDLE DISTAL END
  of the see> BUTTOM   see> BUTTOCK
  COCCIS or COXIS is the HUMAN TAIL BONE or
  the end of the VERBEBRAL COLUMN or SPINE
  see> SACRED  see> SACRUM