Center letter: g
Outer letter: a c d e h n
Answers (35):
  changed
  adage
  aged
  agenda
  cadge
  cadged
  cage
  caged
  change
  dang
  edge
  edged
  egad
  egged
  egghead
  eggheaded
  encage
  encaged
  engage
  engaged
  gadded
  gaga
  gage
  gagged
  ganache
  gang
  ganged
  gene
  ghee
  hang
  hanged
  hedge
  hedged
  henge
  nagged