Center letter: n
Outer letter: a g l o p y
Answers (46):
  nonapology
  polygonal
  agony
  along
  anal
  anally
  analog
  analogy
  annal
  annoy
  anon
  galangal
  gallon
  gang
  gangly
  gong
  gonna
  goon
  goony
  lagoon
  llano
  loan
  long
  longan
  loon
  loony
  naan
  naggy
  nana
  nanny
  nonagon
  nonagonal
  noon
  nylon
  onlay
  only
  oolong
  pagan
  pang
  panoply
  plan
  polygon
  pong
  pony
  pylon
  yang