Center letter: m
Outer letter: d e f h i u
Answers (28):
  dehumidified
  humidified
  deem
  deemed
  dime
  dimmed
  dumdum
  dummied
  femme
  fume
  fumed
  heme
  hemmed
  humid
  hummed
  medium
  meme
  memed
  midi
  miff
  miffed
  mime
  mimed
  muddied
  muff
  muffed
  mummified
  muumuu