per stirpes

[pur stur-peez, per] /pɜr ˈstɜr piz, pər/
noun, Law.
1.
pertaining to or noting a method of dividing an estate in which the descendants of a deceased person share as a group in the portion of the estate to which the deceased would have been entitled.
Compare per capita (def 2).
Origin
1675-85; < Latin per stirpēs literally, by stocks
Examples from the web for per stirpes
  • In a per stirpes distribution, the heirs in the same generation may receive different amounts.
Word Origin and History for per stirpes

Latin, "by families, by stocks;" in legal use, for inheritances, etc., opposed to per capita.