Center letter: m
Outer letter: a g h n o y
Answers (31):
  mahogany
  ammo
  among
  gamma
  gamy
  hammy
  hangman
  homogamy
  homonym
  homonymy
  hymn
  magma
  mama
  mamma
  mammon
  manga
  mango
  mangy
  manna
  many
  mayo
  moan
  momma
  mommy
  mono
  monogamy
  mononym
  moon
  moony
  myna
  mynah