Center letter: o
Outer letter: a d e h p t
Answers (58):
  pothead
  adopt
  adopted
  adoptee
  atop
  depot
  dodo
  doeth
  doodad
  dope
  doped
  dote
  doted
  doth
  dotted
  epode
  hoed
  hood
  hooded
  hoodoo
  hoop
  hooped
  hoot
  hooted
  hope
  hoped
  hopped
  hothead
  hotheaded
  hotpot
  oath
  opted
  peapod
  photo
  poet
  pooh
  poop
  pooped
  pope
  poppa
  popped
  poppet
  potato
  potted
  tattoo
  tattooed
  teapot
  toad
  toed
  toot
  tooted
  tooth
  toothed
  tope
  toped
  topped
  tote
  toted