Compounds of 僭

• 僭す
  (v5s) (obsc) to usurp boastfully
• 僭位
  (n) usurpation of a throne
• 僭越
  (adj-na) presumptuous
  arrogant
  audacious
  forward
  insolent
• 僭王
  (n) usurper king
• 僭主
  (n) usurper
  tyrant
• 僭取
  (n) usurpation
• 僭称
  (n,vs) pretension
  assumption (of a title)
• 僭上
  (adj-na,n) audacity
  forwardness
• 僭用
  (n,vs) using something belonging exclusively to someone else
• 僭する
  (vs-s) (obsc) to usurp boastfully
• 僭上越権
  (n) exceeding (overstepping) one's powers (competence, authority)
  abuse of one's legal authority
  acting ultra vires