1. Plural of fetial; in ancient Rome, a member of a college of priests who conducted diplomatic negotiations and declared war or peace on behalf of the state.
Usage: historical; usually plural

Examples

• The fetials were responsible for performing the sacred rituals that preceded Roman declarations of war.
• Ancient Roman fetials served as official heralds and diplomats between the state and foreign powers.
• The college of fetials maintained strict protocols for international relations in Rome.
• Fetials would recite formal oaths and prayers before any major political decision affecting Rome's foreign policy.