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.
This legal term is explained in detail with Illustration and example case law. It forms a very essential part of our judicial system.
Adjudge is something which is determined, decided ,or declared by a judge or a law concerning.
Competent refers to the skills and characteristics that enable you to perform a job. If someone can perform a required task at a targeted level of proficiency, they are competent.