secundogeniture
noun
se·cun·do·gen·i·ture
sə̇ˌ‧kən(ˌ)dōˈjenəchə(r)
1
: the right or system by which inheritance belongs to the second son
2
: a property or possession inherited by secundogeniture
Word History
Etymology
secundo- (from Latin secundus second, following) + geniture