Compounds of 剋

• 剋
  (n) (1) archaic period of time (usu. a period of approx. two hours corresponding to one of the signs of the Chinese zodiac)
  (2) victory
  (3) strictness
  cruelty
• 相剋
  (n,vs) rivalry
• 下剋上
  (n) juniors dominating seniors
  retainer supplanting his lord