Center letter: g
Outer letter: c e f i n t
Answers (37):
  effecting
  infecting
  citing
  egging
  engine
  enticing
  feign
  feigning
  feinting
  fencing
  feting
  fifing
  fining
  fitting
  gene
  genetic
  genie
  genii
  gent
  getting
  gift
  gifting
  gigging
  ginning
  icing
  ignite
  igniting
  inciting
  inning
  netting
  teeing
  tenting
  tinge
  tingeing
  tinging
  tinning
  tinting