Compounds of 余計

• 余計
  (adj-na,adv,n) too much
  unnecessary
  extraneous
  abundance
  surplus
  excess
  superfluity
  (P)
• 余計者
  (n) person whose presence is unwelcome, unnecessary or a nuisance
  fifth wheel
  third wheel
  interloper
• 余計なお世話
  (exp) it's none of your business
  it's not your concern
• 余計な御世話
  (exp) (id) Mind your own business
• 余計な世話を焼く
  (exp) to poke one's nose (in) where one is not wanted