Center letter: e
Outer letter: a c h k m n
Answers (38):
  namecheck
  ache
  acme
  acne
  ahem
  amen
  cache
  cake
  came
  cane
  chance
  check
  cheek
  each
  emcee
  enema
  enhance
  hake
  heck
  heme
  hence
  henchman
  henchmen
  henna
  keen
  knee
  mace
  make
  mane
  mean
  mecca
  meek
  meme
  menace
  name
  nankeen
  neck
  nene