Definition:
: a system of inheritance by which the youngest son or sometimes daughter or collateral heir succeeds to the estate
Example:
"In other regions of the country, families followed postremogeniture, in which the youngest son received a larger share of the bequest!" — Peter A. Diamond and Jonathan Skinner, in Death and Dollars, 2003
About the Word:
Postremogeniture, which is also known as ultimogeniture (although it seems rare enough that the need for a synonym is questionable) should not be confused with primogeniture, which is the practice of passing along all the best things to the eldest child. You are unlikely to encounter this word outside of a dictionary or law textbook, but if you feel the need to inject it into conversation it might be of figurative use when describing your feeling that your parents really love your younger siblings more than they love you.
