Yezdegerdian

Yez`de`ger´di`an

a.

1.

Of or pertaining to Yezdegerd, the last Sassanian monarch of Persia, who was overthrown by the Mohammedans; as, the Yezdegerdian era, which began on the 16th of June, a. d. 632. The era is still used by the Parsees.

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.