
1) Postremogeniture
Found on
https://www.crosswordclues.com/clue/ultimogeniture

Ultimogeniture, also known as postremogeniture or junior right, is the tradition of inheritance by the last-born of the entirety of, or a privileged position in, a parent`s wealth, estate or office. The tradition has been far rarer historically than primogeniture, inheritance by the first-born; or partible inheritance, division of the estate amon....
Found on
http://en.wikipedia.org/wiki/Ultimogeniture

inheritance by the last son
Found on
http://phrontistery.info/u.html

(from the article `primogeniture and ultimogeniture`) preference in inheritance that is given by law, custom, or usage to the eldest son and his issue (primogeniture) or to the youngest son ... the English form of ultimogeniture, the system of undivided inheritance by which real property passed intact to the youngest son or, failing so...
Found on
http://www.britannica.com/eb/a-z/u/4

ultimogeniture 1. Inheritance or succession by the youngest son of the family. 2. The mode of succession by which the right of inheritance pertains to the youngest member of a family.
Found on
http://www.wordinfo.info/words/index/info/view_unit/2218/2

postremogeniture.
Found on
https://www.infoplease.com/dictionary/ultimogeniture
No exact match found.