Primacy (noun)

The state of being first or highest in rank or importance.

Origin:

Late middle english: from latin primatia, from primus 'first'.

Examples:

1. His primacy as a composer is beyond dispute.
2. The primacy of economic considerations over political ones.
3. The primacy of national security.
4. The primacy of the Pope in the Roman Catholic Church.
5. The primacy of our interests over those of the other country.