Center letter: g
Outer letter: a c e n o t
Answers (42):
  cognate
  cotangent
  agate
  agent
  agog
  cage
  cogent
  cognac
  conga
  congee
  cottage
  ecotage
  eggnog
  encage
  engage
  gaga
  gage
  gang
  gate
  gene
  gent
  geotag
  gnat
  goat
  goatee
  gone
  gong
  gonna
  goon
  gotta
  gotten
  negate
  nonagon
  octagon
  ogee
  tang
  tangent
  tango
  teenage
  toga
  tong
  tonnage