The word same is seldom, if ever used without the definite article or some stronger definitive before it; as, "On the same day,""in that same hour,""These same gentlemen."

If nouns, however, they are never inflected by cases or numbers; nor do they in general admit the usual adjuncts or definitives of nouns.

Whereas the other definitives above mentioned are very often used to supply the place of their nouns; that is, to represent them understood.

The pronoun was as final and definitive as his "since."