This legal maxim, though it is in Latin, does not have any pedigree in Roman law. Like all Latin maxims nowadays, its meaning is confusing for those who do not understand Latin, and even more confusing for those who do. It properly refers only to what happened to a plaintiff's personal action when the plaintiff died. As Mr. Justice Taschereau pointed out in Monaghan v. Horn (1882), 1882 CanLII 2 (SCC), 7 S.C.R. 409 at 442, the maxim would read "Actio in Personam" rather than "Actio Personalis" if it were intended to describe what happened to the plaintiff's action when the defendant died.
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