birthright
[noun]
Synonyms: right, appanage, perquisite, prerogative, privilege, heritage, heritance, inheritance, legacy, patrimony

[TahlilGaran] English Synonym Dictionary ▲

birth‧right /ˈbɜːθraɪt $ ˈbɜːrθ-/ noun [countable usually singular]
something such as a right, property, money etc that you believe you should have because of the family or country you belong to:
Freedom of speech is every American’s birthright.

[TahlilGaran] Dictionary of Contemporary English ▲