from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
PLENE ADMINISTRAVIT, pleading. A plea in bar entered by an executor or
administrator by which he affirms that he had not in his possession at the
time of the commencement of the suit, nor has had at any time since any
goods of the deceased to be administered; when the plaintiff replies that
the defendant had goods, &c., in his possession at that time, and the
parties join issue, the burden of the proof will be on the plaintiff. Vide
15 John. R. 323; 6 T. R. 10; 1 Barn. & Ald. 254; 11 Vin. Ab. 349; 12 Vin.
Ab. 185; 2 Phil. Ev. 295; 3 Saund. (a) 315, n. 1; 6 Com. Dig. 311.