potestas abstinendi
noun
potestas ab·sti·nen·di
-ˌäbztəˈnen(ˌ)dē,
-ˌäpst-;
-ˌabztəˈnen(ˌ)dē,
-ˌdī
: the right granted by the praetorian law of ancient Rome to a necessary family heir to decline the inheritance
also : the power to exercise this right
called also beneficium abstinendi
Word History
Etymology
Latin, power of refusing