Center letter: d
Outer letter: c g i l n o
Answers (45):
  clodding
  coddling
  colliding
  condoling
  clod
  codicil
  coding
  codon
  coinciding
  cold
  colloid
  condo
  condoning
  dicing
  diddling
  digging
  dildo
  dill
  ding
  dinging
  dingo
  dining
  dino
  dodging
  dodo
  dogging
  doggo
  doing
  doling
  doll
  dolling
  dong
  donning
  doodling
  gild
  gilding
  gliding
  gold
  good
  idling
  idol
  indigo
  lodging
  nodding
  noodling