It means “for this purpose”. It’s a temporary position created for a specific purpose. An Ad-hoc is specifically hired to argue a particular key point in which the person is expert.
Abrogate generally refers to the formal annulment or repeal, cancellation or abolish either any law, right, custom or legal agreement through an act of authority.
Eggshell skull rule is a principle of the law of torts that a defendant is liable for a plaintiff's unforeseeable and uncommon reactions to the defendant's negligent or intentional act.
That he not depart