misuse

  1. verb
    apply to a wrong thing or person; apply badly or incorrectly; "The words are misapplied in this context"; "You are misapplying the name of this religious group"
  2. verb
    change the inherent purpose or function of something; "Don``t abuse the system"; "The director of the factory misused the funds intended for the health care of his workers"
  3. noun
    improper or excessive use