- A tall, ornamented cap with peaks in front and back, worn by the pope, bishops, and abbots as a mark of office.
- The official headdress of the ancient Jewish high priest.
- In ancient Greece, a headband worn by women.
Origin of miter
- Middle English mitre from Old French from Medieval Latin from Latin mitra headdress of the Jewish high priest from Greek
From American Heritage Dictionary of the English Language, 5th Edition