Center letter: n
Outer letter: a e h p t y
Answers (51):
  hyphenate
  ante
  antenna
  antennae
  apnea
  eaten
  entente
  ethane
  happen
  heathen
  henna
  heptane
  hyena
  hyphen
  naan
  nana
  nanny
  nape
  natant
  natty
  neap
  neat
  neaten
  neath
  nene
  nepenthe
  netty
  paean
  pane
  pant
  panty
  patent
  patentee
  peahen
  peen
  pennant
  penne
  penny
  pent
  pentane
  teen
  teeny
  tenant
  tenet
  tent
  tenth
  than
  thane
  then
  yenta
  yente