relating or important to something
appurtenant - relating
The formal word ‘appurtenant’ expresses something that belongs to or is relevant to something else. It is most commonly encountered in written English, particularly in scholarly articles and legal documents. A good way of remembering how to use it is to think of the similar-sounding word ‘pertinent’, which has roughly the same meaning.
The legal dispute is not over the rights to the property itself. It is over the land appurtenant to it.
Building permission was granted for the project which consists of a new hotel and its appurtenant bar, restaurant, and nightclub.
I believe that instilling a strong team ethic is appurtenant to high morale and productivity in the workplace.