from
Bouvier's Law Dictionary, Revised 6th Ed (1856)
EXECUTIO NON. These words occur in the stat. 13 Ed. I. cap. 45, in the
following connexion: Et...precipiatur vice comiti quod scire faciat parti...
quod sit ad certum diem ostensura si quid sciat dicere quare hujustnodi
irrotulata vel in fine contenta executionem habere non debeant. This statute
is the origin of the scire facias post annum et diem quare executionem non,
etc. To a plea in bar to such a writ, the defendant should conclude that the
plaintiff ought not to have or maintain his aforesaid execution thereof
against him, which is called the executio non, as in other cases by actio
non. (q.v.) 10 Mod. 112; Yelv. 218.