Center letter: i
Outer letter: d g l n y z
Answers (41):
  dizzyingly
  diddling
  diddly
  digging
  dill
  dilly
  ding
  dinging
  dingy
  dining
  dizzily
  dizzy
  dizzying
  dying
  giddily
  giddy
  giddying
  gigging
  giggling
  giggly
  gild
  gilding
  gill
  gilling
  ginning
  gliding
  idling
  idly
  idyl
  idyll
  illy
  inning
  lily
  lining
  lying
  niggling
  ninny
  zigging
  zing
  zinging
  zingy