The word preferential is used as an adjective and it conveys the phenomenon of giving advantage to some particular person or a particular group. The following sentence can help you in understanding the word quite well as it is used in the context: The person is known to be a strict disciplinarian, so don't expect and preferential treatment from him, he treats everybody on equal terms. In the sentence the word is used to convey the idea of the trait of the person that he will not do any particular favour to anybody.
The word has been derived from the word prefer and it has some other words also that can seek their derivation on this very word. The words preferable, preferment are all based on the same root.
The word has been derived from the word prefer and it has some other words also that can seek their derivation on this very word. The words preferable, preferment are all based on the same root.