Compounds of 余

• 余計な世話を焼く
  (exp) to poke one's nose (in) where one is not wanted
• 余裕しゃくしゃく
  (adj-na,adj-no,adj-t,adv-to) calm and composed
  broadminded
  having enough and to spare
• 立錐の余地もない
  (adj-i) tightly packed
  full to capacity
• 可愛さ余って憎さ百倍
  (exp) (id) Excessive tenderness switches to hundredfold hatred
• 余の辞書には不可能という言葉は無い
  (exp) (id) There is nothing that I can't do