Definition of Fieri facias de bonis testatoris
The writ issued on an ordinary judgment against an executor when sued for a debt due by his testator. If the sheriff returns to this writ nulla bona, and a devastavit (q.v.), the plaintiff may sue out a fieri facias de bonis propriis, under which the goods of the executor himself are seized.
That's the definition of Fieri facias de bonis testatoris in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.